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Beautyrest Black Twin Xl Low Profile Foundation

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SKU: 51037806

Discover Beautyrest Black®

Individualized Support
Individualized Support

Triple-Stranded Pocketed Coil® Technology offers our most advanced, individualized support + motion separation for every sleeping position.

Premium Materials
Premium Materials

Ventilated, Self-Response™ Latex®, designed to maximize airflow while conforming to your body for responsive pressure relief, combines with contouring memory foams and premium materials to provide luxurious comfort. *Available in select models

Advanced Temperature Management
Advanced Temperature Management

Sleep Climate™ Technology works with Micro Diamonds™ Memory Foam, a premium foam infused with diamond particles that is designed to help transfer heat away from the body, for an optimal sleep. *Available in select models

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Beautyrest Black®

Designed where luxury meets innovation, with Triple-Stranded Pocketed Coil® Technology for individualized support + motion separation with a quilted top mattress surface.

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The Beautyrest® Difference

Each Beautyrest® mattress is thoughtfully designed and assembled in the USA and CertiPUR-US certified safe against harmful chemicals, so your indoor air quality is cleaner. Plis Beautyrest® mattresses are backed by a 10-year limited warranty, so you can enjoy premium sleep for years to come.

Specifically designed to work together with your Beautyrest Black mattress, this foundation offers long-lasting support and reduced motion for restful night's sleep.

Collection

Box Spring

Warranty

10 year limited warranty -

Code P -

View Warranty

Color

Gray

Foundation height

Low profile

Pattern

Geometric

Profile height

Low profile

Upholstery material

Upholstered

Q&A answers generated with AI assistance.

Exactly how tall is this Twin XL foundation?

This specific foundation has a height of 5 inches. Its total dimensions are 80"L x 38"W x 5"H, ensuring a perfect fit for any standard Twin XL mattress or as half of a King-sized support system.


Does this mattress foundation require assembly?

No assembly is required for this product. It arrives fully constructed and ready to be placed directly onto your bed frame. This is a significant advantage for apartment dwellers or college students who need a reliable, high-quality support system without the hassle of tools or complex instructions.


Can I use this foundation with a memory foam or hybrid mattress?

Absolutely. Unlike traditional box springs that have "give," this is a solid-surface foundation designed to provide the flat, rigid support that modern memory foam and hybrid mattresses require. Our expertise in mattress longevity shows that a solid foundation like this one is essential to prevent sagging and warping, and it often ensures you remain in compliance with your mattress manufacturer's warranty.


Is this foundation recommended for rooms with low ceilings or modern high-profile mattresses?

Yes, this low-profile foundation is an excellent lifestyle choice for bedrooms with lower ceilings or for shoppers who prefer a sleek, minimalist aesthetic. By reducing the base height to 5 inches, it allows the mattress to sit lower to the ground, which can make a small room feel more spacious and prevent the bed from dominating the visual landscape of the room.


What is the benefit of a low-profile mattress foundation compared to a standard one?

This low-profile foundation offers a height of 5 inches, compared to the 9-inch height of a standard foundation. This lower profile is strategically designed for modern, high-profile mattresses that are already 12 to 18 inches thick. By using a 5-inch base, you maintain a more accessible and aesthetically pleasing bed height, making it easier to get in and out of bed without sacrificing the structural integrity of your mattress.


Is this foundation suitable for a split king bed setup?

Yes, this Twin XL foundation is the industry standard for creating a Split King or standard King bed base. To support a King-sized mattress, you would simply use two of these Twin XL foundations side-by-side. This setup is particularly beneficial for homes with narrow hallways or tight staircases, as two Twin XL units are much easier to maneuver into a bedroom than a single solid King foundation.


What are the durability benefits of the Beautyrest Black design?

This foundation is specifically engineered to complement high-performance mattresses by providing long-lasting support and exceptional motion reduction. The upholstered gray finish with a geometric pattern isn't just for style; it provides a durable, protective layer for the internal frame, while the construction is built to minimize the transfer of movement, ensuring a more restful night's sleep even if a partner moves.

39.00"w x 80.00"d x 5.00"h

4 out of 5 stars

Based on 6035 ratings
5
61%
4
11%
3
8%
2
6%
1
13%
BB

Improved the comfort of an older mattress

This review was collected as part of a promotion

we placed this topper over an older mattress hoping to improve the feel. It did just that!

Review provided by Sealy

Reviewed On Jul 19, 2026
Comfort Finally

Wonderful

This review was collected as part of a promotion

Very comfortable. My pro- adapt mattress is 2 yrs old, still a bit to firm. This is just what I needed. Still a little warm even with the cool top

Review provided by Sealy

Reviewed On Jul 19, 2026
disgruntled

too soft

This review was collected as part of a promotion

tried to return or exchange was told no guarantee to bad to sad I'm stuck with it

Review provided by Sealy

Reviewed On Jul 19, 2026
Happy neck

Wonderful pillow for your neck

This review was collected as part of a promotion

This pillow has helped solve neck issues I was having with other pillows.

Review provided by Sealy

Reviewed On Jul 19, 2026
Sweet dreams

Mattress topper

This review was collected as part of a promotion

The mattress topper has made a huge difference in sleep comfort, It also has alleviated some of our aches and pains

Review provided by Sealy

Reviewed On Jul 19, 2026