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- Starting price: $1,599
- Trial period: No trial periods
- Split sizes and dimensions (width x length): King (76 inches x 80 inches) and California king (72 inches x 80 inches).
- Weight capacity: 850 lbs
- Warranty: 25 years
7 Best Split King Adjustable Beds of 2024: Our Expert Picks
Nov 17, 2024
Fact Checked
We researched the top brands to find the best split king adjustable beds for different preferences and sleep positions.
Key Takeaways
- Our pick for the best split king adjustable bed overall is the Saatva Adjustable Base Plus because the five presets, massage features, and adjustable legs give sleepers a highly customizable sleep experience.
- During research and testing, our Reviews Team found that the best split king adjustable beds were user-friendly and had reliable safety features like under-the-bed lighting.
- Split king adjustable beds can cost around $1,700 before discounts and promotions to more than $3,700.
- Nearly 40% of adults in the United States deal with chronic back pain, with back pain being most common in adults age 65 and older, according to the Centers on Disease Control and Prevention.
- Since adjustable beds are durable medical equipment, or DME, they are often covered by Medicare and Medicaid for qualifying individuals.
A split king adjustable bed, where each side may be adjusted independently, is a popular option for couples who have different sleep preferences and different wind-down routines when it comes to sleeping, reading, working, watching TV, or eating.
Most manufacturers sell split adjustable beds in two sizes: king and California king. A split king adjustable bed typically consists of two twin mattresses sold as a set. The main difference is the size: A California king mattress is typically 4 inches longer and wider than a king mattress, at 84 inches by 72 inches.
Because there are two separate mattresses, split king beds tend to provide less sleep interruption with a sleep partner. Our Reviews Team narrowed our top picks, taking into account the value, features, sleeping positions, ease of use, and more to help you choose the best split king adjustable bed for your needs. You can also read our review of the best adjustable bed frames for more options.
Best split king adjustable beds in 2024
- Saatva Adjustable Base Plus: Best Split King Adjustable Bed Overall
- Nectar Adjustable Bed Frame: Best Value Split King Adjustable Bed
- Puffy Adjustable Base: Longest Trial Period Split King Adjustable Bed
- Sealy Ease Power Base: Simplest Design Split King Adjustable Bed
- Tempur-Pedic TEMPUR-Ergo Smart Base: Most Advanced Split King Adjustable Bed
- Purple Premium Plus Smart Base: Most Customizable Split King Adjustable Bed
- Sleep Number FlexFit 1 Smart Base: Best Split King Adjustable Bed for Upper-Body Adjustability
What we look for in a split king adjustable bed
We found several important factors when testing split king adjustable beds, including:
Mattress firmness
Contrary to popular belief, you don’t need an extra firm mattress if you suffer from back pain. Medium-firm mattresses are the sweet spot.
Good pressure relief
Find a mattress designed to relieve pressure when your body and joints are pressed against the surface material.
Spinal support
You want a mattress that supports a neutral spine in its most natural position.
A long trial period
A mattress trial with 100 nights or more gives you three full months to test it out and return if it isn’t helping.
Saatva Adjustable Base Plus: Best Split King Adjustable Bed Overall
Saatva Adjustable Base Plus
BEST OVERALL
✓
We chose the Saatva Adjustable Base Plus as the best split king adjustable bed overall because it has five preset buttons, including zero-gravity and a custom setting, as well as full body or localized massage at three different speeds. Saatva has industry leading policies including free white glove delivery and a 25-year warranty on adjustable beds. •
Discount: The brand offers $225 off a purchase of $1,000 or more to adults age 65 and older, military members and their families, health care professionals, government employees, and others. Best Overall
Our expert take on the Saatva Adjustable Base Plus
We like the Saatva Adjustable Base Plus for split king mattresses because it features five preset buttons: zero-gravity, anti-snore, flat, maximum head height position, and custom settings. This bed is available for use with regular split king or California split king mattresses, so it is a great option for taller sleepers. Our testers loved the full-body, head, and leg massage setting which can be used with three-speed options and a 15-minute timer.
Saatva’s Adjustable Base Plus has a safety lock feature to keep the bed secure during sleep. It is designed with a wall-hugging feature that keeps nightstands within reach and under-bed lighting plus a built-in flashlight on the remote.
Like many adjustable bed bases, this Saatva base has a zero-gravity setting, which is achieved by lying on your back and raising your legs and head just above the level of your heart. It places your body in a position that mimics the state of complete weightlessness and gives you the sensation of floating.
The Saatva split king adjustable base has a zero-clearance design that allows the base to be used either without legs on a platform bed frame or with adjustable legs. If used with adjustable legs, you can adjust the base height from 13–18 inches.
The Adjustable Base Plus has a weight capacity of 850 pounds per side of the bed, which is the highest weight capacity among the adjustable beds we mention in this article.
Saatva provides free white-glove delivery, meaning its team members will deliver and set up the bed for you. They will remove the packaging and even remove your old mattress and box spring free of charge. The 25-year warranty consists of a 5-year full warranty followed by another 20 years of limited warranty. Saatva does not accept returns on adjustable bed frames, so all sales are final.
Who may love it
- Since this mattress has a higher weight capacity compared to other split king adjustable beds, it is a good fit for sleepers who weigh more than 250 pounds.
- Saatva includes white glove delivery purchases, so this option works well for someone who needs an old mattress removed and their new bed set-up.
- Sleepers who prefer to use a remote instead of using a mobile-app to control their adjustable bed.
Who may want to avoid it
- This is one of the higher priced options on this list, so it isn’t a great choice for shoppers on a budget.
- Because the Saatva Adjustable Base Plus is protected by a trial period, shoppers who feel unsure about their choice may want to pick a different option.
- Smartphone users who prefer the convenience of mobile-app controls.
Customer reviews
The Saatva Adjustable Base Plus mattress gets 4.8 out of 5 stars on its website with 85 reviews. Many reviewers mention that the overall experience was positive, from quick shipping to quick set up and delivery and ease-of-use. Others shared that they would have preferred to have light-up buttons on the remote
“Fantastic! Love it! Have never slept better! The Zero gravity option and the massage are wonderful!!” – Michelle, verified buyer on 8/26/2024
“I am impressed with the delivery of these items. The communication was timely regarding the time of delivery with appropriate notifications of date and time of arrival. The white glove delivery team was efficient, respectful, knowledgeable and friendly. They are an exemplary representatives of this service. Thank you to these two fine gentlemen.” – L.L., verified buyer on 04/15/2024
On Google, the Saatva Adjustable Base Plus has 4 out 5 stars with 90 reviews, with reviewers mentioning how comfortably they were sleeping in this bed.
Learn more in our review of Saatva mattresses and adjustable beds.
Nectar Adjustable Bed Frame: Best Value Split King Adjustable Bed
Nectar Adjustable Bed Frame
BEST VALUE
✓
We chose the Nectar Adjustable Bed Frame as the best value split king adjustable because it offers great value if you’re looking for a basic, customizable solution alongside your sleeping partner. It comes with several programmable and preset positions, including zero gravity, anti-snore, and TV mode. Plus, you can also enhance your bedtime relaxation routine with dual head and foot massage. •
Discount: Military members, first responders, and health care professionals can get a 5% discount on top of any other available Nectar mattress on-site discounts. Our expert take on the Nectar Adjustable Bed Frame
We chose the Nectar Adjustable Bed as the best value king split adjustable bed because this bed frame has the basic features most important in an adjustable bed at an affordable price. We love that the structure of this bed features zero clearance, which means it can be used on an existing bed’s platform or placed directly on the floor. The adjustable legs help you customize your setup even more, so you can have your bed at a height that allows your feet to touch the floor when you’re getting into and out of bed. We feel that the downsides to this split king adjustable bed frame are the $199 added fee for in-home delivery and setup and the three-year warranty, which is extremely short compared to Puffy, which offers lifetime warranties on adjustable bases. In addition, you can’t attach a headboard or footboard to the Nectar Adjustable Bed Frame, as they could damage the material and void your warranty—though you may still be able to fit the Nectar bed frame inside a panel bed frame.
Who may love it
- Shoppers on a budget will appreciate the lower price tag of this adjustable bed.
- Customizable set-up is a good fit for someone who already owns a bed platform and wants to use it with the adjustable bed.
- If you are still on the fence about which bed frame to choose, you’ll appreciate the 50-night trial included with this adjustable bed.
Who may want to avoid it
- Sleepers with mobility issues who need help with set-up, since Nectar charges extra for in-home delivery and set-up.
- If you would like to attach a headboard or footboard, this mattress isn’t a great fit because doing so voids the warranty.
- Because of the short warranty of 3 years, a different model might be better for someone who is looking for an adjustable bed that will last a decade or more.
Customer reviews
The Nectar Adjustable Bed Frame mattress gets 4.7 out of 5 stars on its website, with more than 2,700 reviews. Many reviewers mention how user-friendly and easy-to-use the bed is. Others shared that the remote can be unpredictable, not always working as expected.
“I love this bed! It set up so quickly, didn’t smell like harsh chemicals as that can happen. The mattress is firm and so comfortable, my sleep quality has improved. Love the zero gravity option which I use nightly!” – Jessica A., verified buyer on 08/16/2024
“Quality bed is always a great investment but moving to an adjustable bed was worth every dime. Instructions were easy to follow, wiring harnesses were color coded and the accompanying linen and pillows were first rate.” – Deanne F., verified buyer on 08/12/2024
Read more in our Nectar review.
Puffy Adjustable Base: Longest Trial Period Split King Adjustable Bed
Puffy Adjustable Base
Longest Trial Period
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We chose the Puffy Adjustable Base as the longest trial period split king adjustable bed because it comes with a 101-night free trial period and lifetime full warranty. If you are not happy with the adjustable bed for any reason within 101 days, Puffy will pick up the bed, donate it to charity, and provide a full refund. The Puffy warranty covers any defects due to faulty workmanship or materials that may arise as long as you own the Puffy adjustable base. •
Discount: Puffy offers a discount of $1,425 to eligible military members, health care professionals, educators and students. Our expert take on the PuffyAdjustable Base
We chose the Puffy Adjustable Base as the longest trial period for a split king adjustable bed because of its generous 101-night free trial period and lifetime full warranty. We recommend Puffy for those who may be uncertain whether an adjustable bed is right for them, as the brand makes returning the bed easy, picking up the unwanted bed from your home for free.
Even though Puffy offers a long trial period and easy returns, the bed’s long list of noteworthy features makes it a long-term option for most. The adjustable base has four USB charging ports, dual-zone massage with three speeds, an automatic timer, and LED under-bed lighting. In addition, the bed is customizable, with a universal headboard attachment and adjustable legs that provide five different options for adjusting the base height within a range of 2–11.5 inches above the ground.
Who may love it
- Those who want an adjustable base compatible with their favorite mattress.
- Sleepers with sleep apnea or pain concerns will appreciate the snoring and zero gravity presets.
- Shoppers who are uncertain if an adjustable base will work for them.
Who may want to avoid it
- Anyone unable to assemble the bed themselves will be disappointed by the lack of white-glove delivery.
- Those seeking a California king.
- Shoppers seeking a smartphone-compatible bed.
Customer reviews
The Puffy Adjustable Base gets 4.8 out of 5 stars on its website, with more than 650 reviews. Many reviewers mention that the base is easy to set up and the brand’s impressive customer service. Some reviewers note that the bed’s weight makes moving it to the bedroom difficult.
“We love our Puffy bed! We purchased the puffy bed a few months ago and have been sleeping so much better. My partner suffered from shoulder pain and our previous bed was only making in worse. The puffy bed has not only helped with the shoulder pain but promoted better sleep overall.” – Desiree R., verified buyer on 01/12/2023
“I now have a Puffy Cloud mattress and the Serenity Adjustable Base. Both are great. I got the base because I developed gastritis and reflux, and needed a way to comfortably prop myself up while working, resting, and sleeping. Delivery was fast. Setup was easy. Customer service is top notch. And, with the 101 night trial, there’s really no risk. It’s a no-brainer for me.” – David, verified buyer on 04/22/2024
Read more in our dedicated Puffy Mattress review.
Sealy Ease Power Base: Simplest Design Split King Adjustable Bed
Sealy Ease Power Base
SIMPLEST DESIGN
✓
We chose the Sealy Ease Power Base as the simplest design split king adjustable bed because it is a good choice for those who want a simple design and aren’t interested in high-tech features. Sealy also offers free in-home delivery and set-up and a discount when you bundle the bed with a mattress. •
Discount: If you purchase a Sealy mattress along with an Ease Power Base, you can get a discount of $200 off your total purchase. Our expert take on the Sealy Ease Power Base
We chose the Sealy Ease Power Base for the simplest design because we found this adjustable bed to be incredibly user-friendly. The split king size comes with two remote controls that allow you to adjust the head and foot of each base. During testing, the features that stood out to our Reviews Team the most were the head and foot position adjustments, wireless remotes, two preset buttons, and adjustable height legs.
Sealy offers free in-home delivery and setup, along with a “one-to-one” policy for removal. This means that if you purchase an adjustable bed frame, it will remove your old bed frame. If you purchase an adjustable bed frame along with a mattress, it will remove your old bed frame and mattress.
There’s no trial period for this adjustable bed, but it does come with a 25-year warranty.
Who may love it
- Apartment dwellers will appreciate free in-home delivery and set up.
- Sleepers looking for a no-frills, easy-to-use split king adjustable bed.
- Discount offered when bundling mattress and bed frame together could be a big perk for budget-shoppers.
Who may want to avoid it
- Someone requiring a customizable adjustable bed, as the simple design means less variation in functionality.
- Anyone hoping for a bed with a massage feature should consider another option on this list.
- Without a trial period, this bed isn’t a great fit for sleepers who are shopping around for the best bed for their needs.
Customer reviews
The Sealy Ease Power Base mattress gets 4.7 out of 5 stars on its website with more than 450 reviews. Many reviewers mention how simple this adjustable base is to use. Others shared they experienced some difficulty navigating scheduling of delivery and set-up.
“My husband and I got this so that we can each adjust our side to our preference. It’s made a world of difference in both of us being able to sleep better.” – Shan, verified buyer on 05/14/2024
“I love that this base is simple to use. Made of superior quality.” – Princess Sleeper, verified buyer on 03/07/2024
For more information, check out our in-depth Sealy review.
Tempur-Pedic Ergo Smart Base: Most Advanced Split King Adjustable Bed
Tempur-Pedic Ergo Smart Base
MOST ADVANCED
✓
We chose Tempur-Pedic’s TEMPUR-Ergo Smart Base as the most advanced split king adjustable bed because it includes all of the same features found in the Saatva base, as well as two USB ports on each side, sleeptracker technology, and a mobile app that provides sleep monitoring and coaching. Our expert take on the Tempur-Pedic Ergo Smart Base
We like the advanced features of the Tempur-Pedic Ergo Smart Base, which includes two USB ports on each side and sleeptracker technology and a mobile phone app that provides sleep monitoring and coaching. During testing, the automatic snore response that automatically elevates your head 12 degrees if it hears you begin to snore, was a feature that really stood out. It also includes smart home compatibility with connections to Google Assistant or Amazon Alexa so you may use voice commands. To use the Tempur-Pedic app, you need to download it from the Apple app store or Google Play store, place the Sleeptracker sensors that come with the bed below your mattress, and follow the instructions provided by the app. The app and sensors let you see how you slept and provide customized sleep coaching tips to help you sleep better over time. And since the app is compatible with Alexa and Google smart devices, you can use voice commands to operate your bed and even ask how you slept last night. It will give you a report and make suggestions for improvements.
Tempur-Pedic provides free white-glove delivery and removal of the packaging and your old mattress. All Tempur-Pedic adjustable beds have a 25-year limited warranty. There is no trial period with any Tempur-Pedic adjustable bed.
Who may love it
- Taller sleepers sharing a bed, since this adjustable bed is available in a split California king.
- If you prefer beds with advanced features and customizable technology, you will appreciate this split king adjustable bed.
- Apartment dwellers or sleepers with mobility issues, since this bed includes free white glove delivery.
Who may want to avoid it
- This is the highest priced mattress on our list, so it won’t be a great fit for shoppers on a tight budget.
- If you prefer a lower-tech bed, the advanced features of this option might not be something you enjoy.
- If you value responsive customer service, keep in mind that some testers reported the customer service wasn’t as helpful as they had hoped it would be.
Customer reviews
The Tempur-Pedic’s TEMPUR-Ergo Smart Base mattress gets 4.6 out of 5 stars on its website with more than 1,700 reviews. Many reviewers mention how much they enjoy the premium features of this adjustable base. Others shared that the effectiveness of the snore feature was inconsistent.
“The air that comes up from the base through the mattress is excellent. Plus I love the bed and does so many cool things. I get in bed and put my legs up as far as they will go. That feels great after that I put it flat then lumbar all the way up. It feels so good. Then I use the app to play ocean music to go to sleep with. This bed makes going to sleep so wonderful. The app does a lot more things but I haven’t used that yet. I love this bed even though it was a lot more money to buy. It’s worth every cent I paid. Don’t let the price stop you from purchasing it. I love love it .” – “Love love it”, verified buyer on 09/09/2024
“At first I thought this would be an upgrade that I didn’t need but having the EASE Power Base has taken my bedroom comfort to the next level! The zero gravity feature is exactly what I need after a long day at work, an intense workout, or just a moment of peace and relaxation from life. Well worth the investment!” – “Sleep King”, verified buyer on 08/24/2024
Purple Premium Plus Smart Base: Most Customizable Split King Adjustable Bed
Purple Premium Plus Smart Base
Most Customizable
✓
We chose the Purple Premium Plus Smart Base as the most customizable split king adjustable base, because the split king version of this bed allows you to adjust the position of your upper body, neck, and feet. You can also fine-tune the amount of lumbar support it provides to reduce tension in your lower back. •
Discount: If you purchase a RestorePlus or RestorePremier mattress, in-home delivery and setup are free. Our expert take on the Purple Premium Plus Smart Base
We loved the Purple Premium Plus Smart Base for its customizable features, which start with basic head and foot adjustability but include a wide range of premium features. During testing, we were particularly impressed with the dual-zone, head and foot, massage function which has three levels of intensity and a massage timer. This adjustable bed also features pillow tilt adjustability, zoned lumbar support, and anti-snore, zero-gravity, and flat presents. Sleepers also have the option to create three custom presents.
The Purple Premium Plus Smart Base also includes motion-activated under-bed lighting with the choice to control the bed using an included remote or via a mobile app.
One downside of this bed is that Purple doesn’t offer a trial period for its adjustable beds. Standard curbside delivery is free. The option for in-home delivery and setup costs an additional $200 and is available only if you purchase a Purple mattress. If you purchase a RestorePlus or RestorePremier mattress, in-home delivery and setup are free. Our Reviews Team confirmed that the in-home delivery team can remove your old mattress if requested.
Who may love it
- Sleepers with specific comfort needs, since this bed includes three custom presets.
- Since this adjustable bed includes adjustable, zoned lumber support, it might be a good fit for someone with lower back pain.
- If you share a bed with someone who snores, or you’re the snoring partner in a relationship, the anti-snore preset will be a big perk.
Who may want to avoid it
- Sleepers on a tight budget may want to choose a more affordable option on this list.
- Someone with mobility issues, since this adjustable bed doesn’t come with free white glove delivery.
- Without a trial period, anyone who is unsure which bed will work for them might be better off choosing another.
Customer reviews
The Purple Premium Plus Smart Base mattress gets 4.6 stars out of 5 on Google, with more than 50 reviews. Many reviewers mention that the base has well-thought-out features, like motion-detecting underbed lighting, plenty of memory presets so you can find and save your ideal position, and lumbar support. Most of the negative reviews on the Purple Premium Plus Smart base mention a poor delivery experience, difficulty with setup, and the inability to return the base if it’s not a good fit for their needs..
“We like the adjustments on this bed. I particularly like that you can tip the head downward in relation to the upper body angle (you can also adjust upward if that is your preference) as it helps me keep my neck in a comfortable position with the pillow I use. We also like the motion sensing lighting under the bed that lets you see what you might step on in the middle of the night without waking your partner (or helps you see your glasses or phone if you dropped or knocked them off the nightstand). The timing of the light is adjustable, and you can also disable it if it does bother you” – Scott, verified buyer on 2/10/2024
“The delivery team was the worst and expected a disabled person to lift their own mattress. I had to beg them for help. Other than that the adjustable base itself is great, I have had it for four months. I have the premium smart adjustable base and I use it with my old hybrid gel mattress that I bought from Ashley furniture. I love the vibration, massage function. It vibrates and helps me relax. The nightlight has been very handy and I use it every night. ” – Bxb, verified buyer on 1/20/2024
Learn more in our Purple mattress review.
Sleep Number FlexFit 1 Smart Base: Best Split King Adjustable Bed for Upper-Body Adjustability
Sleep Number FlexFit 1 Smart Base
BEST FOR UPPER-BODY ADJUSTABILITY
✓
We chose the Sleep Number FlexFit 1 Smart Base for best split king adjustable bed for upper-body adjustability because this mattress is split at the top half of the bed, allowing for separate movement of the head of the bed. Although the FlexFit 1 Smart Base only offers upper-body adjustability, it still comes with popular adjustable bed features like under-bed lighting and custom preset positions. Our expert take on the Sleep Number FlexFit 1 Smart Base
We chose the Sleep Number FlexFit 1 Smart Base as the best split king adjustable bed for upper-body adjustability because this bed is split at the top of the bed for upper-body adjustments. This model is more basic than the FlexFit 2 and FlexFit3, with features like a partner snore present and under-bed lighting. It includes adjustable-height legs that let you adjust the height of the base from 13.75 to 18.25 inches and one customer preset per side of the bed.
We suggest sleepers looking for more features might consider the FlexFit 2 and FlexFit 3 adjustable beds, because they have additional foot adjustment abilities and zero-gravity presets. The FlexFit 3 Smart Base also comes with a foot-warming feature.
Sleep Number adjustable beds don’t come with a remote. To control the adjustable base, you have to pair it with the SleepIQ app. When paired with a Sleep Number smart mattress, the SleepIQ app also tracks your sleep quality through sensors in the mattress. If you prefer a handheld remote to control the adjustable bed and smart mattress, you can purchase one for $49.
Sleep Number requires Premium Delivery and Setup for its adjustable beds. The service costs an additional $249 and includes in-home delivery, old mattress recycling, and packaging removal. Sleep Number will also help you set up your adjustable bed and SleepIQ account as part of the premium service. All Sleep Number adjustable beds have a 15-year limited warranty. There is no trial period for its adjustable beds; they are final sale.
Who may love it
- Someone sharing a bed with a partner who snores will appreciate the Snore preset.
- The foot-warming feature of the FlexFit 3 Smart Base is a big perk for sleepers who tend to run cold at night.
- Tech-savvy people who appreciate the functionality of making adjustments to the bed using the mobile app.
Who may want to avoid it
- Sleepers who prefer to use a remote over a mobile app to make adjustments to the bed
- Someone who is unsure about their choice, since there is no trial period
- This mattress doesn’t have a massage feature, and some sleepers may prefer an adjustable bed with this capability.
Customer reviews
The Sleep Number FlexFit 1 Smart Base gets 4.7 out of 5 stars on its website, with more than 2,200 reviews. Many reviewers mention the decrease in back pain symptoms they’ve experienced. Others shared that customer service was not as responsive as they would have liked if they had questions or issues they needed to be addressed.
“I bought a Sleep Number bed with the hope of finding more restful and comfortable sleep. I have not been disappointed! My bed is finally set to my perfect comfort number and sleep angle. I’ve been sleeping better ever since.” – BQui, verified buyer in August, 2024
“I read every single night when I go to bed. I used to put 2-3 pillows up against the headboard to raise myself up to read. Now I just push the button and up I go! Love it!” – BroJan, verified buyer in August, 2024
How we test split king adjustable beds
Our Reviews Team at NCOA has spent over 550 hours researching 30 different adjustable beds to provide you with the most accurate information for choosing a split king adjustable bed. We also surveyed 600 adjustable bed users for first-person insights on what they are looking for from an adjustable bed. During our research and testing phase, we consult with industry experts to get their take on which features are most important in a new bed.
After we narrow down our choices to the best split king adjustable beds, our team conducts hands-on testing using a standardized testing form. Testers score each model across a number of categories, including affordability, customer service responsiveness, and the ease-of-use.
We continuously test new adjustable beds each month and make sure we give you the most up-to-date information possible. Following a standardized testing format, we place a high priority on accurate and comprehensive testing and research, which allows us to feel confident in each bed we recommend.
How to choose a split king adjustable bed
Our Reviews Team chose the Saatva Adjustable Base Plus as the best split king adjustable bed overall because of the variety of presents, free white glove delivery, and multiple massage settings. However, we know that what works for one person might not be the best choice for all sleepers and that finding the right adjustable bed is a highly individualized decision. As you shop for the best split king adjustable bed for you, we suggest you keep the following things in mind.
Budget
Adjustable bed bases can be quite expensive, with costs ranging between $1,798 and $3,798 among the models we chose. If your current mattress is not compatible, you’ll also have to consider the cost of a new mattress in addition to the base. Some companies offer financing options, allowing you a bit of flexibility around price. You may also be able to get a discount for purchasing the split-king adjustable base with the two twin XL mattresses at the same time.
Adjustability
Adjustable legs on the base allow you to position your bed at the right height for ease of entry and exit, reducing the risk of falls or straining. This is especially important for people with mobility issues. Adjustable head and foot functions are also important, especially with the split king, since each side adjusts independently.
Massage capabilities
From targeting specific areas of the body to full body and dual massage, this feature can help relieve stress and pain, as well as relaxing your muscles so you can wind down faster and sleep more soundly.
Tech features
If you’re tech savvy, you might want a split king adjustable bed that’s supported by a smartphone app. Apps can help you to customize your experience by setting timers for adjustments (an especially helpful feature for people who snore), tracking your restless sleep patterns, and more. If you’re not comfortable using an app to control your bed, you should confirm that two remote controls come with the bed—one for each sleeper.
Other technologically advanced features may include built-in Bluetooth speakers to stream audio from your computer or phone, and USB ports to make device charging easy and convenient.
Under-bed lighting
This is an important feature to assist with getting in and out of bed safely, especially if you are at an increased risk for falls. Under-bed lighting provides an added safety feature to ensure you have good visibility in your bedroom at night.
Presets
Even if your split king adjustable bed comes with previously programmed settings like anti-snore and zero gravity, it’s also great to have a couple of preset options that are customizable for your needs. You may find that creating your own position will lead to the best quality rest for you.
Weight limit
Adjustable beds have a weight limit, typically between 400 and 850 pounds per twin XL base. Keep in mind that this includes the weight of the mattress as well as anyone sleeping on it. A twin XL mattress typically weighs between 30 and 105 pounds. Before purchasing an adjustable bed, make sure it supports the total combined weight of both the mattress and the user.
Assembly
Some adjustable bed manufacturers offer white-glove delivery, which means a professional will carry it in and assemble it for you. Without white-glove delivery, it may take multiple people to carry each split king base inside, which may weigh close to 100 lbs each, depending on the brand. Make sure you feel comfortable or have assistance moving any heavy boxes and assembling the adjustable base if you order from a brand that doesn’t offer white-glove delivery services.
Warranty and trial period
Most adjustable beds come with a warranty, but they can vary greatly by manufacturer, from as little as three years up to a full lifetime warranty. When shopping for an adjustable bed, read through the warranty to make sure you feel comfortable with the coverage. Consider the return policy, too. Most adjustable beds are final sale, but there are some returnable options, such as the Puffy Adjustable Base, that come with an at-home sleep trial.
Ordering and delivery
Adjustable beds can be ordered in store or online for delivery to your home. Delivery times vary from one manufacturer to the next, but many offer estimates of shipping windows from the date of order. It can be helpful to contact customer service for delivery details before you place your order.
Split king vs. king adjustable beds
Split king adjustable bases are two twin XL beds joined together. They offer separate sleeping surfaces and remote controls for you and your partner.
As a single mattress, the regular king adjustable bed is more suitable for couples with the same sleep preferences. It also allows for one set of sheets and offers a single mattress surface. On the other hand, while even the best split king adjustable bed is great for partners who have different sleep preferences, it does require two sets of sheets and may cause an uncomfortable seam between the two mattresses that couples may not be used to.
| King Adjustable Bed | Split King Adjustable Bed | |
|---|---|---|
| Benefits | There’s no seam since you use one single mattress, and couples can adjust one bed to their joint preferences. | Each partner can customize their sleep preferences, from the mattress itself to the position. |
| Pros | More room without a seam between you. One set of sheets needed. Keeps intimacy simple. | Each sleeper can customize their own experience, from bed position to massage, without bothering the other. A personalized experience can lead to a better sleep routine and higher-quality rest. The transfer of motion between couples with two individual mattresses is minimal. |
| Cons | Sleepers must commit to a single bed position and agree jointly on using all the same features. The transfer of motion from one partner to the other can be a sleep disrupter. | If the mattresses are not secured properly, it can create a gap between the individual beds. The potential seam where the mattresses meet can be a hard adjustment. |
Pros and cons of split king adjustable beds
Pros
- Manage chronic pain: Split king adjustable beds allow sleepers to find the most comfortable position for them, which can help manage and decrease chronic pain. For example, someone with chronic back pain will often experience relief by sleeping at a slight slope or incline instead of flat on their back.
- Improve reflux: Sitting upright or at an incline can provide a lot of relief for someone with acid reflux or heartburn. An adjustable bed allows sleepers dealing with discomfort related to reflux and heartburn to sleep more comfortably, with sleeping at an incline helping to manage symptoms that might keep them up at night.
- Relieve sleep apnea: Changing position and adjusting the incline of your mattress can help relieve the symptoms of sleep apnea, especially when used alongside a CPAP machine. In some cases, a split king adjustable bed will be prescribed by a medical provider for sleepers with sleep apnea.
- Custom sleep position: Pairing a split mattress with a split, adjustable bed frame allows each sleeper to find the sleep position that works best for them. This can be incredibly beneficial for couples sharing a bed with different comfort and medical needs.
Cons
- Uneven mattress feeling: Since split kings are made up of two separate mattresses, this can create an unevenness. Plus, if the two individual mattresses are not properly secured to the bed frame, they can be displaced by normal sleep movements, and a space can form between them, creating an uncomfortable and potentially dangerous gap.
- It’s a big investment: Along with the cost of the base itself, you’ll also need new mattresses and bedding. Mattress prices can be higher for this bed model, costing you hundreds of dollars more.
- Mattress inventory can be limited: Since the split king adjustable bed is not considered a mainstream model, finding the right twin XL mattress options may present challenges.
- The larger size takes up a lot of room: If you have a small bedroom, a split king adjustable bed can pose a problem because it takes up quite a lot of space. Make sure to take proper measurements and test whether you and your partner will have enough room to get in and out of bed comfortably and walk around safely at night.
How much do split king adjustable beds cost?
During testing and research, we found that most split king adjustable beds cost around $1,700 before discounts and promotions and can be as much as $3,798. We also found that the number of features, level of adjustability, and customizability played a big role in the price of these beds. For example, some of the more expensive models have massage capabilities with multiple settings, a larger number of presets, and the choice to create a custom preset yourself.
Mattress and adjustable bed companies regularly discount their beds, making them more affordable. You will most commonly find sales and promotions around major holidays like President’s Day, Memorial Day, Fourth of July, Labor Day, and Black Friday. When looking for a split king adjustable bed, we also suggest paying attention to shipping and set-up costs, as some companies offer free, in-home set-up, while others charge an additional fee.
For many people, an adjustable bed is a medical necessity. Since Medicare offers coverage for durable medical equipment, individuals who qualify can expect to pay a 20% coinsurance with their insurance covering the rest. While Medicaid coverage is different from state to state, you may also find that your Medicaid insurance plan covers some or most of the cost of your medically necessary adjustable bed. Depending on the policies associated with your HSA/FSA account, you may be able to use these funds to pay for durable medical equipment like an adjustable bed.
Compare the best split king adjustable beds, as of 2024
| Trial period | None | 50 nights | 101 nights | None | None | None | None |
| Warranty | 25 years | 3 years | Lifetime | 25 years | 25 years | 10 years | 15 years |
| Mobile app | No | Yes | No | No | Yes | Yes | Yes |
| Price | $2,598 | $3,596 | $2,099 | $1,798 | $3,798 | $3,190 | $2,199 |
Bottom line
For those wondering what is a split king or a split king mattress, split king adjustable beds are a great option for adults who share a bed with a sleeping partner. They may provide relief from back pain, reduce snoring, and offer a better night’s sleep overall. In addition, a split king bed has two separate mattresses so that sleepers are not as bothered by the movements of their sleep partners.
For an all-around solid choice at a reasonable price, our Reviews Team recommends the Saatva Adjustable Base Plus, which comes with free delivery and assembly. If you’re tech-savvy and prefer a split king adjustable bed with advanced features like smartphone connectivity, consider the Tempur-Pedic TEMPUR-Ergo Smart Base. The Purple Premium Plus Smart Base can also connect to smart devices and it offers the most options for customized positioning, along with three programmable presets per side.
Go with the Sealy Ease Power Base if you want the most basic design with an easy-to-use remote. If you’re looking only for upper-body adjustability, consider the Sleep Number FlexFit 1 Smart Base. Lastly, If you want to make sure you like your bed before committing to it, consider the Puffy Adjustable Base, which has a 101-night trial and a lifetime warranty.
Frequently asked questions
Yes. Because a split king bed is made up of two mattresses side by side, you will be able to feel the edges and gap in between. But you can purchase a gap filler to remedy the issue. This T-shaped connector works as a small bridge to remove the gap—and any dip—between the split king mattresses. Using a ratchet strap is an alternative method, but it may not fully secure a twin XL sheet set.
Yes, a split king is made up of two twin XL mattresses side by side.
Most adjustable split king bases use metal bars to hold the mattresses in position.
It may be somewhat difficult to put sheets on a split king bed because you are using two sets of twin XL sheets. If the mattresses fit very tightly together, you may have to work a little harder to get the fitted sheets in place.
A standard split king bed uses two sets of twin XL sheets, not a specific type of split king sheet set. You can find twin XL sheets in most department and bedding stores.
Yes, most split king adjustable beds come with optional headboard attachment brackets. Check out our page on headboards for adjustable beds for more information.
It depends on the type of mattress. Although a split adjustable base works with two twin XL mattresses that are adjustable-frame compatible, you can use an adjustable base king-size mattress on a split king base, too.
If you do use a king-size mattress, though, you will want to sync the split king remotes or use a cord to attach the bases so they operate together instead of independently, otherwise the base won’t work as it’s designed to. If you have a foam, latex, or hybrid mattress, check with the existing mattress manufacturer for details on whether the mattress can be used with an adjustable base.
King adjustable beds are 16 inches wider than queen adjustable beds. King beds are 76 inches wide by 80 inches long, while queen beds are 60 inches wide by 80 inches long.
The split king adjustable beds we researched have weight capacities that range from 400 pounds to 850 pounds per side. We found the Saatva Adjustable Base Plus had the highest weight capacity at 850 pounds per side.
A split king adjustable bed is worth it if you sleep with a partner who has different sleep habits or needs than you. Thanks to the split-mattress style, co-sleepers can address separate sleep issues without disrupting one another.
It’s worth it to address back pain and snoring, and to improve overall sleep quality if either (or both) of you are having a hard time sleeping soundly.
The best split king adjustable bed is the one that meets the sleep needs of both you and your partner. Once you have settled on a bed that fits your budget and has all of the offered features you prefer, such as delivery options, warranty, and trial period, we recommend comparing the models in this review. Saatva is our top overall pick because it has great customer reviews, free white glove delivery, and high weight capacity. Nectar offers great value as a more basic model with good programmable and preset options, as well as good tech features and USB charging ports. We also like Puffy’s adjustable legs, 101-night trial period, lifetime warranty, and affordability.
For couples, a split king adjustable bed means both partners can benefit from the firmness level of their preference without compromising. It may also mean less sleep interruption if one partner is moving around at night.
Side sleepers can benefit from the customized sleep positions offered in adjustable beds. Elevating the upper body, even while resting on the side, can help improve circulation, open the airways, and reduce symptoms of acid reflux. Some side sleepers may find that slightly elevating the foot of the bed can help relieve hip pain.
Have questions about this review? Email us at reviewsteam@ncoa.org.
Sources
- Hagino C, Erfanian P. Before-after study to determine the effectiveness of an adjustable wood frame-foam and wool mattress bed-system (The Natura Mattress System) in reducing chronic back pain in adults. Journal of the Canadian Chiropractic Association. March 1997. Found on the internet at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2485300/
- Danoff-Burg S, Rus HM, Weaver MA, Raymann RJEM. Sleeping in an Inclined Position to Reduce Snoring and Improve Sleep: In-home Product Intervention Study. JMIR Formative Research. April 6, 2022. Found on the internet at https://formative.jmir.org/2022/4/e30102