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The Facts About Split King Mattresses [Guide + Reviews]

by Olly Mason

Dealing with a blanket hog? Not a problem. Adjusting to a bed that your sleep partner loves but leaves you in discomfort? That’s a trickier dilemma to solve—but it’s not impossible. The solution is as easy as exploring split king mattresses and the many benefits they offer couples every night.

If you’re unfamiliar with this type of mattress, this guide answers the questions you might have about this sleep option, including “what is a split king bed?” and why switching to one can be good for your health and the quality of your sleep. To get you started on the right foot, we even provide a review of three best split king mattresses chosen and evaluated by our sleep specialists.

At a Glance:

Benefits of a Split King Bed

Best Split King Mattress Picks

FAQs

Why Trust Us?

Everyone enjoys sleep differently, and that can be a struggle for couples with specific sleep needs that don’t complement the preferences of their partners. In these situations, there are two solutions sleepers can explore. The first is settling on a mattress comfort level that suits both users, but split mattresses offer users a truly tailored sleep experience that satisfies both sleepers.

 A split king bed is like any traditional king mattress, with one main exception. Instead of a single surface, these mattresses are separated at the middle, essentially creating two solo sleep spaces the size of a twin XL mattress. Together, the two measure the dimensions of a standard king mattress, which is 76 inches wide and 80 inches long. There’s no need to purchase a special bed base, and split king mattresses are compatible with matching bed frames without any necessary adjustments.

Benefits of a Split King Bed

Dimensions aside, split mattresses provide additional benefits over standard mattresses, including:

Customizable comfort – Check with your mattress supplier for customizable options that satisfy the preferences of two sleepers.

Minimal disturbance – Because each bed is detached from the other pair, sleepers experience virtually no motion transfer from moving partners.

Easier to transport – Even with careful measuring, moving a king-size mattress through doorways can be a challenge. By cutting their bed sizes in half, split king mattresses are easier to transport from room to room and beyond.

Best Split King Mattress Picks

Sleep with peace of mind knowing your cuddle buddy is just as comfortable as you are on a split king mattress. Our experts have picked three models from leading experts in the science of sleep.

Best Overall: Beautyrest® Black® Hybrid X-Class™ Firm Split King Mattress (700810875-1072) (Queen-size mattress shown)

Side view of Beautyrest 700810875-1072 split king-size hybrid mattress

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This split king mattress may be divided, but the reviews are unanimous: This hybrid mattress from Beautyrest is a dream come true. Its 4.8-star rating is credited to a luxurious combination of spring support with exclusive T3 Pocketed Coil Technology, plus high-performance memory foam for a cushion of full-body comfort. This split king hybrid mattress is firm to the touch, but a soft support level cuddles every curve of the body for extra pressure relief, ideal for side sleepers.

Features:

  • T3 Pocketed Coil Technology
  • RightTemp Memory Foam
  • HD Memory Foam
  • Self Response latex 

Best Value: SleepFit™ Executive 1.5 Traditional Pocketed Coil Medium Split King Mattress (26553SK) (Queen-size mattress shown)

Side view of SleepFit 26553SK split king-size medium-firm mattress

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A good night’s sleep is priceless, and now it’s affordable with the SleepFit 26553SK mattress. The best of traditional design, including pocketed coils and a quilted cover, delivers luxurious comfort the classic way. Settle in to enjoy a specially designed Independent Coil System with a combo of foam and latex for contouring comfort from head to toe.

Features:

  • Independent Coil System
  • Tri-zoned wrapped coils 
  • Full Body Surround technology
  • Serene Foam and Latex

Best Luxury: Tempur-Pedic® TEMPUR-LUXEbreeze™ Soft Memory Foam Split King Mattress (10243170SK) (Queen-size mattress shown)

Side view of Tempur-Pedic 10243170SK split king-size plush mattress

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Share the one-of-a-kind comfort of this Tempur-Pedic split king mattress with your loved one for out-of-this-world comfort that was inspired by NASA. This sleep journey includes temperature-regulating memory foam, a removable cover for easy washing, and a TEMPUR-APR layer that reduces pressure points for a soothing experience that hugs the body. If you and your loved one like a soft bed that doesn’t sink, this pick is the perfect balance of what you both enjoy with the support of any mattress on this list with the plush touch Tempur-Pedic memory foam.

Features:

  • PureCool+ Phase Change Material
  • SmartClimate Max Dual Cover
  • TEMPUR-APR material 
  • High-stretch performance panel

FAQs

Satisfy your curiosity for split king mattresses with these answers to the questions buyers like you ask most.

Do I need an adjustable base for a split king mattress?

Overall, a split king box spring is enough support for a dual king bed, but upgrading to a split king adjustable bed base can provide even more benefits you and your sleep partner can appreciate. Specifically, a powerbase can reduce snoring, help with sleep apnea, and improve circulation, which can result in less tossing, turning, and disruption throughout the night. This Malouf Sleep Structures adjustable base for split king beds is the ultimate combination of luxury with proven health benefits that make it all that sweeter.

What type of sheets do I need for a split king mattress?

Essentially, split king sheets are just two twin XL bed sheets sold as a pair. That means you can purchase two twin XL sheets, and they will fit your bed just fine. However, split mattress bed sheets often come with upgrades like mattress suspenders and elastic corner bands, which keep the bedding in place better than regular bed sheets and are compatible for use with adjustable bed bases. A good option is this DreamFit DreamCool split king sheet set, featuring 100 percent Pima cotton for a breathable experience.

Why Trust Us?

Since 1996, Mattress Land has been making strides in the mattress industry to provide our customers the sleep experience they need — and deserve. We do that by offering the ultimate customer experience, complete with our trained experts, BedFIT™ computerized diagnostics, and our impressive showroom. We’ll make sure that you find the right sleep solution for your sleeping habits, so you can feel energized in your day-to-day life.

We are also proud of our diverse, employee-driven culture, where our teams work hard toward a common goal. We know that better sleep makes all the difference, and our commitment to changing the landscape of traditional mattress shopping is how we know Mattress Land is one of the best mattress stores around.

Shop Split King Mattresses at Mattress Land

At Mattress Land, we provide quality name-brand mattresses for great prices. Our sleep experts are always happy to help you find a split king mattress. With locations throughout California, Idaho, Nevada, and Washington, Mattress Land is bound to have a sleep solution for everyone. More accessible than ever, you can call us, visit our website to shop Mattress Land sales, and check out Mattress Land reviews online. Or better yet, stop by one of our showrooms to discover why we are everyone’s favorite local mattress store. Visit us today!

Learn More: Best King Size Mattresses