Similar to a twin mattress in terms of size, the twin XL mattress also measures 38 inches in width, but features an additional 5 inches of length, making it 80 inches long. This extra length makes twin XL beds a great option for anyone who wants the convenience and practicality of a standard twin size mattress, with a little bit more leg room.
A Twin XL mattress is 38 inches wide by 80 inches long. You can combine two twin XL mattresses on a standard king size bed frame to create a king size bed.
Kids & Teens
The compact size is great for growing kids or single individuals who need the 80 inches of bed length.
Small Bedrooms
Because of their narrow width, twin XL mattresses are best for smaller rooms; especially kids rooms or college dorms.
Budget conscious
The second smallest standard mattress size, use the twin XL for high quality comfort at a great value.
Try your twin XL mattress in a box risk-free for 120 nights. If you don't love your new BedInABox® after sleeping on it for 60 nights, let us know and we will get the return process started. Details can be found in our Return Policy.
All of the memory foam we develop for our twin XL memory foam mattresses is CertiPUR-US® certified. This means that the foam has been tested by accredited labs and has been certified as safe to sleep on. We use multiple layers of our house-made memory foam to provide the perfect balance of support and pressure relief, for all sleepers.
We partner with Affirm to offer flexible financing options, so you can pay with fixed monthly payments with rates between 0-30% APR. Simply select Affirm at checkout and complete an application that won’t affect your credit score. Prequalify Now.
Create a more supportive sleeping experience by pairing your twin XL size mattress with a twin XL size foundation. A mattress foundation serves as a base for your mattress and generally uses solid planks or slats to support and lift your mattress off the ground. There are different types of foundations suited to different mattresses and sleep preferences, BedInABox® currently offering three options compatible with a twin XL mattress: a slatted foundation, a platform foundation and an adjustable foundation.
Provides simple, slatted support for memory foam or hybrid mattresses. This sturdy foundation is available in a 5” profile or an 8” profile and can be paired with optional foundation legs for additional height.
Best described as a combination of a standard mattress foundation and a decorative bed frame, our upholstered platform offers a slightly lower profile than pairing a solid foundation with a separate bed frame and is compatible with all BedInABox® mattresses.
Solid mattress bases that can be raised or lowered to create a custom sleep experience. The MotionInABox™ adjustable bases are available in two different models, MotionInABox™ 1.0 and MotionInABox™ 2.0, that offer two different suites of features.
Our 9” Essential mattress is a simpler take on our Original Mattress, utilizing the same dual layer memory foam technology in a slightly thinner, medium-firm mattress profile.
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The Original mattress is our classic 11” dual-layer memory foam mattress. The two layers combine plush, temperature regulating comfort and medium-firm support to provide the perfect level of contouring alignment.
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The Azul® mattress features 11” of cooling comfort. The dual layer medium-soft mattress tops multiple layers of phase change material with an UltraCool® soft knit cover to offer our most advanced cooling system.
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11" of our classic CoolRest™ Gel memory foam construction, enhanced with spring support for added lift.
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The Tranquillium® mattress is built with 12” and three layers of firm memory foam to maximize support without sacrificing comfort.
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The Dual Hybrid® mattress is 13” of premium comfort, combining the support of memory foam and springs. The BedInABox® hybrid mattress features the highest coil count in the industry to provide ultimate lift, support and pressure relief exactly where you need it.
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The Eco-Lux mattress is made with 11" of renewable memory foam, topped with a naturally moisture wicking organic cotton cover. The only Bio-Preferred® mattress on the market and our most sustainable sleep solution.
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