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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. The main difference is the size: A California king is typically 4 inches longer and wider than a king 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.
| Trial period | None | 50 nights | 101 nights | None | None | None | None | None |
| Warranty | 25 years | 3 years | Lifetime | 25 years | 25 years | 10 years | 15 years | Lifetime |
| Mobile app | No | Yes | No | No | Yes | Yes | Yes | No |
| Price | $2,598 | $3,596 | $2,099 | $1,798 | $3,798 | $3,190 | $2,199 | $3,790 |
* Data as of April 2024
After taking into consideration price, features, delivery, warranty, manufacturer reputation, and customer reviews, our Reviews Team gave the Saatva Adjustable Base Plus the designation of “Best Overall” in split king adjustable beds.
Price: $2,598
Payment options: American Express, Discover, Mastercard, Visa, Google Pay, PayPal, and Affirm
Trial period: None
Warranty: 25-year
Dimensions: 80 inches long by 76 inches wide
Weight capacity: 850 pounds for each twin XL base, including the weight of the mattress (Saatva twin XL mattresses weigh between 62–95 pounds)
When choosing a split king adjustable bed frame, you will need two twin XL adjustable-bed-compatible mattresses.
If you want to use a non-Saatva mattress with your Saatva adjustable base, contact the manufacturer to verify whether the mattress is compatible with an adjustable base.
It comes in a regular king size or a California king size, to suit taller sleepers. Each side functions independently and includes all of the following features:
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.
Saatva has an A+ rating and a score of 4.75 out of 5 stars based on more than 1,500 reviews with the Better Business Bureau (BBB). The few complaints that have been made relate to delays in delivery times, difficulties with returns, and the quality of Saatva mattresses. Most of the reviews are not specific to split king adjustable bed frames. Saatva has 4.5 out of 5 stars based on more than 1,000 reviews with Trustpilot. Overall, customers are happy with its 24/7 customer service, as Saatva has the highest customer satisfaction rating of any company in our review.
If you need help choosing a bed frame or mattress, or if you have questions about your order, you can contact Saatva by:
If you want to see a Saatva adjustable base in person, your options are limited to eight viewing rooms across the United States.
Read more in our full Saatva review.
The Sealy Ease Power Base is a good choice for those who want a simple design and aren’t interested in high-tech features.
Price: $1,798
Payment options: American Express, Discover, Mastercard, Visa, and financing through Sealy Credit
Trial period: None
Warranty: 25 years
Dimensions: 79.5 inches long by 75 inches wide
Weight capacity: 650 pounds for each twin XL base, including the weight of the mattress, or 250 pounds per person
All Sealy mattresses are compatible with the Ease Power Base. The mattresses come with a 90-night trial and a 10-year warranty.
If you purchase a Sealy mattress along with an Ease Power Base, you can get a discount of $200 off your total purchase.
The split king size comes with two remote controls that allow you to adjust the head and foot of each base. The Ease Power Base doesn’t have massage capabilities, but it does include the following features:
The Ease Power Base has a simple wireless remote with preset, head adjustment and foot adjustment buttons.
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.
Sealy reviews on BBB and Trustpilot are listed under its parent company, Tempur Sealy International Inc. On BBB, it is an accredited business with a grade of A+, but it received a rating of 1.03 out of 5 stars from an average of 148 customer reviews at the time this article was written. On Trustpilot, it had three reviews with a rating of 3.5 out of 5 stars. There aren’t many reviews from Sealy customers specifically, but one reviewer mentioned that customer service was slow to respond to their return requests.
If you need help choosing a bed frame or mattress or have questions about your order, you can contact Sealy by:
Sealy has retailers that have adjustable beds on display for you to view and test out. For more information, check out our in depth Sealy review.
Tempur-Pedic’s TEMPUR-Ergo Smart Base comes in a regular split king size or a California split king size for the same price. In addition to all of the features found in the Saatva base, the Ergo Smart Base also includes:
Price: $3,798
Payment options: American Express, Discover, Mastercard, Visa, and Tempur-Pedic credit cards
Trial Period: None
Warranty: 25-year
Dimensions: 79.5 inches long by 77 inches wide
Weight capacity: 650 pounds for each twin XL base, including the weight of the mattress (Tempur-Pedic twin XL mattresses weigh between 39.3–77 pounds)
All three models of Tempur-Pedic mattresses work with its adjustable bases.
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.
Tempur-Pedic has an A+ rating but a score of 1.04 out of 5 stars with the BBB, with nearly 700 complaints on file. Most of the reviews are not specific to split king adjustable bed frames but are about poor customer service in general. Tempur-Pedic has low scores on Trustpilot as well, with 1.3 out of 5 stars. Common complaints involve difficulties with returns and warranty issues not being settled in a timely fashion.
If you need help choosing a bed frame or mattress, you can contact a Tempur-Pedic sleep expert by clicking the Live Chat button on its Customer Support page or by phone and email.
If you want to see a Tempur-Pedic adjustable base in person, you can use its online store locator to find a retailer near you.
A split king adjustable bed measures out to the same size as a king bed but is split down the middle to allow co-sleepers to customize their individual sleep experience while not disrupting one another. Each independent mattress equals the size of a twin XL mattress: 38 inches by 80 inches.
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.
Here are a few of the most important features to consider in more detail:
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.
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.
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 of the split king bases 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.
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.
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.
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 overall sleep routine and higher-quality rest. The transfer of motion between couples with two individual mattresses is minimal. |
| Cons | Sleepers must commit to one 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. |
The best split king adjustable beds come with advantages for partnered sleepers, but there are also some issues to note:
Based on our expert consultations and research, we determined the following factors to be important for our readers when shopping for a split king adjustable bed:
We had all of our selections medically reviewed by an expert in the field to ensure that each brand and model is appropriate for NCOA readers’ needs.
For those who are wondering what is a split king or what is 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.
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.
Have questions about this review? Email us at reviewsteam@ncoa.org.
