Split king adjustable beds provide a solution for couples who can’t agree (on sleep preferences, at least): They offer personalized comfort, allowing partners to enjoy different lounging positions without disturbing each other. After testing and researching dozens of options, we rounded up the best split king adjustable beds, which include four bases and one base and mattress combo. The Nectar Adjustable Comfort Premier is our top pick overall, featuring independent head and foot elevation, several preset positions, dual-zone massage and an adjustable height. If you want smarter adjustable beds, the Sleep Number ClimateCool Smart Base (which includes a mattress) and Tempur-Pedic Ergo Smart Base also top our list.
The best split king adjustable beds of 2025 include options from Nectar, Sleep Number and … [+] Tempur-Pedic (pictured).
ILLUSTRATION: FORBES / PHOTOS: tempur-pedic
Our sleep team, which consists of professional mattress testers and certified sleep coaches, relied on their connections, deep knowledge of the sleep space and prior firsthand experience to narrow down our list of split king contenders. They evaluated each bed’s weight capacity, construction, head and foot adjustability, and extra features like massagers and smart technology. They also assessed each one’s value, taking into account warranty periods and reasonable sleep trials. After a meticulous selection process, ahead is our list of the five best split kind adjustable beds. And if you need a mattress to pair with your new base, we also have recommendations for the best split king mattresses.
-
Best Split King Adjustable Bed Overall: Nectar Adjustable Comfort Premier
-
Best Split King Adjustable Bed And Mattress Combo: Sleep Number ClimateCool Smart Base
-
Best Value Split King Adjustable Bed: Helix Adjustable Base (Two Twin XLs)
-
Best Smart Split King Adjustable Bed: Tempur-Pedic Tempur-Ergo Smart Base
-
Best Split King Adjustable Bed For Seniors: Puffy Serenity Adjustable Base
Nectar
Nectar Adjustable Comfort Premier
Material: Steel, pinewood | Support: Fabric-covered steel base | Headboard: Optional | Weight capacity: 850 pounds | Trial period: 60 days | Shipping: Free | Warranty: 2 years | Features: Adjustable height, smart technology, programmable memory, multiple massage settings
Pros:
- Highly adjustable, with several preset positions
- Zero clearance means you can use it on your platform or the floor
- USB charging ports and massage settings
Cons:
- Does not hug the wall
Split king beds can be an investment, but the Nectar Premier Adjustable Bed Frame strikes a great balance of features and value. The latter perk is, in fact, one of the reasons it earned a spot in our mattress team’s list of the best bed frames of 2025. In terms of standout features, the Premier Adjustable Bed Frame has independent head and foot elevation settings that are controlled via the included wireless remote or companion app. You can adjust the bed manually or choose from one of several preset positions, including zero gravity, TV mode and anti-snore. The height is also adjustable to accommodate those with mobility issues or specific medical needs (you have to do this manually, though). Mattress and sleep editor McKenzie Dillon, who tested the queen version of this bed frame, likes that it offers “just the right amount of special features” that will please most individuals, all while staying at an affordable price range.
The Nectar Premier Adjustable Bed Frame has noteworthy extras, too, like four built-in USB ports to charge your phone or other devices, and two massage zones in the head and foot areas. The design is also zero clearance, which means mechanical features don’t extend outside of the frame. This gives you the option to use it without the legs on your existing platform bed frame. If you’d like to add a headboard, Nectar offers four options to choose from for an extra $299.
Sleep Number
Sleep Number ClimateCool Smart Base
Material: Ceramic gel, poly blend, poly foam, metal | Support: Smart base or integrated base | Headboard: Optional | Weight capacity: 600 pounds (per side) | Trial period: 100 days | Shipping: Free (includes setup) | Warranty: 15 years | Features: Automatic adjustments, sleep quality data, smart control, adjustable firmness, active cooling
Pros:
- Includes mattress
- Ultimate control over position and firmness level
- Ability to adjust partner’s side when they’re snoring
Cons:
- The bundle can’t be separated to switch out mattresses
Sleep Number beds are an investment, but you get a lot of bang for your buck. For starters, you’re getting an adjustable bed and mattress combo, meaning the mattresses are included. Plus, each mattress has 100 adjustable firmness levels and can respond to your movements by adjusting firmness to your body position in real time.
As for the base? It has all of the standard features you’d expect from an adjustable base at this price: preset settings (including zero gravity and PartnerSnore), independent heat and foot adjustability, app compatibility, and under-bed lighting, which will automatically trigger if one of you leaves the bed in the middle of the night. The ClimateCool base, in particular, also has independent temperature settings that you can adjust for each side of the bed.
Helix
Helix Adjustable Base (Two Twin XLs)
Material: Carbon steel, polyester, ABS plastic | Support: Fabric-covered steel base | Headboard: None | Weight capacity: 750 pounds | Trial period: None | Shipping: Free | Warranty: 10 years | Features: Customizable height, memory presets, dual head and foot massage, zero gravity, USB outlets
Pros:
- Budget-friendly
- Choice of mattress for each side
- Compatible with your current bed frame
Cons:
- No trial period
- Does not hug the wall
First thing’s first: Helix doesn’t sell a split king bed, but you can purchase two twin XL bases, topped with two twin XL mattresses, for the same effect. The site lets you make your own bundle, and this set is ideal if you and your partner prefer different mattresses.
Our editors have personally tested several mattresses from Helix, and this adjustable base is another one of our favorite picks from the brand. It’s relatively budget friendly but still equipped with plenty of notable features like independent head and foot elevation, USB ports, under-bed lighting and dual-massage functionality—all of which can be controlled via the included wireless remote. It also has zero gravity and lie-flat presets, plus a zero clearance design that allows you to put it right on your existing bed frame. The only thing we don’t love is that it doesn’t hug the wall. Because of this, you’ll need to give it a little extra space to lie flat.
Tempur-Pedic
Tempur-Pedic Tempur-Ergo Smart Base
Material: MDF, steel | Support: Fabric-covered steel base | Headboard: Optional | Weight capacity: 650 pounds | Trial period: None | Shipping: Free (white glove) | Warranty: 25 years | Features: Sleep tracking, voice command, dual-zone massage, under-bed lighting
Pros:
- White glove delivery with free setup and removal of old bed
- Automatic snore response
- Compatible with Alexa
Cons:
- Not eligible for return or exchange
Tempur-Pedic’s adjustable base is all about smart features. It incorporates Sleeptracker-AI technology that’s also compatible with your smart home (it works with any Amazon Alexa-enabled device). This base can sense when you or your partner snores and automatically raises the head of the bed 12 degrees. It also connects to an app that tracks sleep patterns and provides custom sleep tips to help you get better rest. There’s an AI-powered alarm that can sense when you’re in the lightest stage of sleep, and it wakes you during that time to mitigate morning grogginess. It’s also Bluetooth-enabled so you can play music, white noise or guided meditations through the bed’s speakers.
Of course, it also has standard features like other adjustable bases, including dual-zone massage, USB ports, under-bed lighting and adjustable leg height. It also has adjustable lumbar support, four preset positions (including zero gravity) and two empty presets for you to store your favorite position.
Puffy
Puffy Serenity Adjustable Base
Material: Wood, metal, poly foam | Support: Fabric-covered base | Headboard: None (mount included) | Weight capacity: 800 pounds | Trial period: 101 days | Shipping: Free | Warranty: Lifetime | Features: Flexible leg height, under-bed LED lighting, dual massage, preset positions
Pros:
- Customizable height
- Generous trial and lifetime warranty
- Light-up remote included
- Compatible with your existing mattress
Cons:
- Not app-compatible
- Does not hug the wall
The Puffy adjustable bed has several accommodating features that make it a great fit for seniors. A customizable leg height makes it easier to get in and out of bed, and under-bed lighting illuminates your path if you need to get up in the middle of the night. It also includes a light-up wireless remote that makes it easy to adjust head or foot height (each of which operates independently). There are also four preset positions, including zero gravity and lie flat. It doesn’t connect to an app, but that means you don’t have to fumble around with a phone at bedtime.
Other features include USB ports and three dual-massage speeds. If you have a headboard that you love, this adjustable bed also has a universal headboard mount, so you can transfer it right over. At 101 nights, the Puffy offers the longest trial of any adjustable bed on this list, so you can make sure it works for you or get your money back. The company also provides a lifetime warranty.
Why Trust Forbes Vetted
Our mattress and sleep team has published dozens of sleep and mattress guides, all based on testing, in-depth research and our experts’ years of coverage.
- Our library includes a variety of guides on bed frames and bases in particular, including the best Murphy beds, wooden frames and upholstered beds.
- Author of this story Lindsay Boyers is Forbes Vetted’s executive strategy editor. She’s covered sleep and home essentials for more than five years; she’s written about the best mattresses for couples, too.
- Mattress and sleep editors Bridget Chapman and McKenzie Dillon are professional mattress testers and certified sleep science coaches. They’ve tested and reviewed many of the brands on our list and use those insights to oversee this guide and its updates.
- This guide is regularly monitored and updated for accuracy and relevancy, so you can be sure you’re getting the newest information. It was last updated in March 2025 by lifestyle writer Fran Sales.
How We Chose The Best Split King Adjustable Beds
To compile our list of the best split king adjustable beds, our sleep editors considered reputable brands they know and trust. They sought out these brands’ adjustable, split king offerings to the best-selling and most well-reviewed models.
- We prioritized products from brands that we’ve put to the test and have been featured across our other mattress and sleep guides.
- We compared the key aspects of each split king adjustable bed, paying close attention to each option’s weight capacity and materials to ensure each adjustable bed is supportive and durable. We also considered features such as head and foot adjustability, massagers and smart controls.
- Because an adjustable bed is an investment, we examined the trial and warranty policies of each pick, prioritizing options with reasonable sleep trials. (Keep in mind that many adjustable beds are final sale.)
- We pored over hundreds of customer reviews to ensure each option on our list has earned an average star rating of at least 4 out of 5 stars.
What To Look For In The Best Split King Adjustable Beds
While they all offer customizable comfort, each split king adjustable bed model offers different features, set up processes, mattress compatibility, controls and more. Here are the most important aspects to consider.
Setup
Setting up an adjustable bed can be a team effort due to the bed’s weight. Often, you need a second person, plus tools and the time to assemble. Read through reviews to see what the setup process is like before committing. If you can’t assemble the bed yourself or don’t have someone to help you, look for an adjustable bed that comes with white glove delivery or installation services, such as Sleep Number’s ClimateCool bed and mattress combo or Tempur-Pedic’s Tempur-Ergo Smart Base. White glove delivery includes setup and removal of your old bed.
Features
Some of the most common features are head and/or foot elevation, custom presets (which may include anti-snore and zero gravity), massaging and under-bed lighting. Smart adjustable beds may also have USB ports, Bluetooth compatibility (and speakers) and smart home connectivity. Decide which features are most important to you and then make sure the adjustable bed you pick checks all the boxes. Keep in mind that more feature-rich beds typically cost more, but you can still find value-priced options with several of these features, too.
Mattress Compatibility
For the best experience (and to take advantage of all the features), we recommend using two twin XL mattresses on your split king base. Unless a brand specifically mentions a certain type of mattress, there is usually some flexibility in which mattress you can buy, allowing you to choose the most comfortable model for you. Memory foam, latex and some hybrid mattresses tend to be the most compatible with an adjustable base. Innerspring mattresses don’t bend and flex well.
Price
While split king adjustable beds cost more than traditional bed frames, it’s absolutely possible to find a quality model on a budget (including the option to buy two twin XL bed bases, like our value pick from Helix). Or you can spend more to receive every possible features (more on that below). Also, under Medicare Part B, durable medical equipment is covered, including adjustable beds—just note there are a few restrictions and it varies on a case-by-case basis.
Adjustable Height
Split king adjustable beds are often taller than traditional bed frames, which can make it difficult to get in and out of bed. If you want more control over the bed’s height, look for a model with an adjustable height, like our top pick from Nectar or Puffy’s model, which we like for seniors.
Bedroom Space
Most split kings require two twin XL mattresses (each of which is 38 inches x 80 inches) for a total of 76 inches x 80 inches just for mattress space. In general, adjustable beds are slightly larger and bulkier than standard bed frames, but the amount of space an adjustable bed requires depends on the exact model. If you’re concerned about space, be sure to check the dimensions of your particular model before purchasing.
Remote Vs. Apps
You control your smart bed with an included remote or a free companion app. Some adjustable beds like the Sleep Number default to an app, but you can purchase a remote separately. If you want to avoid your phone or tablet at night, look for an adjustable bed that is controlled with a remote. On the other hand, those who don’t want another gadget to keep track of may want to consider an adjustable bed that has app capability.
Frequently Asked Questions (FAQs)
Do You Feel The Crack In A Split King Adjustable Bed?
“>
Do You Feel The Crack In A Split King Adjustable Bed?
You can feel the crack in a split king adjustable bed because it is made to accommodate two separate mattresses being pushed together. This means you may feel the split if you sleep near the center of the bed. However, this is necessary to allow each side to operate independently. If you don’t care about independent head and foot elevation, you can either use a king-size mattress topper to cover the split, or opt for an adjustable bed frame instead.
