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Stearns And Foster Twin Xl Low Profile Foundation

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SKU: 51048506

Long-Lasting SUPPORT. Luxurious comfort and support you can't wait to come back to. Shop Now.
Ahhh-mazingly COMFORTABLE. Text describing Stearns & Foster mattresses.
Support
Support

Crafted with high-quality materials, including exclusive hybrid and innerspring technologies that provide long-lasting stability night after night.

Pressure Relief
Pressure Relief

Indulgent memory foam layers adapt to your unique body shape for pressure relief where you need it.

Cooling
Cooling

Sleep comfortably in any season thanks to additional cooling technology like improved airflow and cool-to-the-touch covers.

Intellicoil® Innersprings

The exclusive design of our IntelliCoil® Innersprings offers a unique level of support to every type of sleeper by responding to varying types of pressure for unmatched long-lasting comfort.

A solid surface foundation is engineered to provide years of stationary support. Designed and upholstered to complement our mattresses and your bedroom decor.

Collection

Box Spring

Warranty

10 year limited warranty -

Code F3 - 10/10 -

View Warranty

Color

Gray

Construction

Solid surface

Foundation height

5 inch

Profile height

Low profile

Style

Contemporary

Upholstery material

Upholstered

Q&A answers generated with AI assistance.

How does a "low profile" foundation differ from a standard-height model?

While a standard foundation typically stands about 9 inches tall, this low-profile version measures just 5 inches in height. This lower profile is an excellent choice for modern bedroom aesthetics or for use with thicker, high-profile mattresses, allowing you to achieve a comfortable entry height for your bed without the mattress sitting too high off the ground.


Can two of these Twin XL foundations be used to create a King-sized bed?

Yes, this is a very common lifestyle application. Placing two Twin XL foundations side-by-side creates the standard footprint for a King-sized mattress (76"w x 80"l). This setup is particularly beneficial for homes with narrow hallways or tight staircases where a solid King foundation would be difficult to maneuver, and it is the required base for a "Split King" mattress configuration.


Will I need to assemble the foundation after it is delivered?

No, this foundation is delivered fully assembled for your convenience. Our professional delivery teams handle the heavy lifting, allowing you to place the foundation directly onto your bed frame and set your mattress on top immediately, ensuring a hassle-free setup in your bedroom or guest suite.


What materials are used in the construction of this foundation?

Built for exceptional durability, this foundation is crafted from high-grade wood combined with a high-gauge steel wire support structure. This hybrid construction ensures a rigid, non-flexing surface that provides superior stability compared to traditional box springs, making it an ideal pairing for both high-end innerspring and hybrid mattresses.


What is the primary purpose of this mattress foundation?

This mattress foundation is engineered to provide a solid, stationary surface that supports your mattress and prevents it from warping or sagging over time. Utilizing a proper foundation is also essential for maintaining your mattress warranty, as leading brands like Stearns & Foster require a completely flat, supportive surface to ensure the long-term integrity of the sleep system.


Is this mattress foundation compatible with memory foam mattresses?

Absolutely. Because this foundation features a solid surface construction, it provides the consistent, flat support that memory foam and hybrid mattresses require. Unlike older slatted bases that can sometimes allow foam to sink or "pocket," this solid surface ensures the mattress remains level, preserving its pressure-relieving properties.

39.00"w x 80.00"d x 5.00"h

4.7 out of 5 stars

Based on 141 ratings
5
87%
4
4%
3
4%
2
1%
1
4%
Bill

Complements the mattress completely

This review was collected as part of a promotion

The foundation works like it’s supposed to..quietly and out of sight.

Review provided by Stearns & Foster

Reviewed On Aug 11, 2026
Tempur

Decent but does have a squeak

This review was collected as part of a promotion

Foundation seems to be decent quality, but does have a squeak when initially getting in bed on the edges. My old Tempur-Pedic foundation did not do that.

Review provided by Stearns & Foster

Reviewed On Jul 27, 2026
Hapy Sleeper

Perfect foundt

This review was collected as part of a promotion

This unsung hero is the perfect match for our brand new Stearns and foster mattress! It’s just the right height, well-made, and quality construction.

Review provided by Stearns & Foster

Reviewed On Jun 28, 2026
Great Foundation

Great Foundation

This review was collected as part of a promotion

This 9” Stearns & Foster Flat Foundation is the perfect height to give our new mattress a lift. It fits perfectly in our Queen bed frame. It is well made. Highly recommend this item.

Review provided by Stearns & Foster

Reviewed On Jun 8, 2026
not happy sleeper

Very lumpy mattress

This review was collected as part of a promotion

When we received this mattress, we expected an excellent product. What arrived was a lumpy mattress which have since returned. Very disappointed in the Sterns and Foster brand-- that we assumed would be excellent.

Review provided by Stearns & Foster

Reviewed On May 10, 2026