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Stearns And Foster Twin Xl High Profile Foundation

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SKU: 50848501

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

9 inch

Profile height

High Profile

Upholstery material

Upholstered

Q&A answers generated with AI assistance.

How does the construction of this foundation ensure long-term durability?

Based on our expertise in premium sleep systems, this foundation is crafted from high-grade wood and reinforced with a high-gauge steel wire support structure. This robust "Solid Surface" construction is vital for maintaining a completely flat surface, which is often a specific requirement for maintaining full warranty protection on high-end mattresses.


Why should I choose a Twin XL foundation instead of a standard Twin?

A Twin XL foundation measures 80 inches in length, providing five extra inches compared to a standard Twin. This makes it the standard choice for taller individuals, teenagers, or college students in dorm environments. Additionally, the Twin XL size is the necessary component for creating a "Split King" setup when two are placed side-by-side.


Is this foundation easy to move in small apartments or homes with tight staircases?

While this is a sturdy, high-profile unit, the Twin XL footprint (39"w x 80"l) is designed to be manageable in tighter spaces. If you are furnishing a master suite with a King-sized mattress but have a narrow staircase or small elevator, using two Twin XL foundations is the most practical solution, as they are much easier to maneuver through doorways and around corners than a single King-sized base.


Can I use this foundation with other mattress types like memory foam or hybrids?

Yes. Because this is a solid surface foundation rather than a slatted base, it provides the consistent, uniform support required by modern mattress technologies. This includes memory foam, latex, and hybrid mattresses, which require a flat, non-yielding surface to prevent the materials from dipping or losing their shape over time.


What are the benefits of choosing a 9-inch high-profile foundation?

This 9-inch high-profile base is ideal for shoppers who prefer a taller, more traditional bed height. A high-profile foundation can make getting in and out of bed more comfortable and creates a more prominent, contemporary aesthetic in the bedroom. It is also an excellent choice if you have a lower-profile mattress but still want to achieve a grand, elevated look.


What is the difference between a mattress foundation and a traditional box spring?

While they look similar, a foundation like this Stearns & Foster model provides a much sturdier, rigid base compared to the flexible “give” of a traditional box spring. This solid surface construction is specifically engineered to offer stationary support that prevents your mattress from warping or sagging over time, ensuring the structural integrity of your sleep system.


Does this foundation require any assembly upon delivery?

No assembly is required for this item. It arrives as a fully constructed, solid unit ready to be placed directly onto your bed frame. This is a significant advantage for those who want a quick and seamless setup without the need for tools or complex instructions.

39.00"w x 80.00"d x 9.00"h

4 out of 5 stars

Based on 6009 ratings
5
61%
4
11%
3
8%
2
6%
1
13%
IKE

LOVE THIS TOPPER

This review was collected as part of a promotion

WHAT A DIFFERENCE THIS HAS MAKE! I WOULD PURCHASE THIS TOPPER AGAIN. IT IS VERY COMFORTABLE AND HAS ALLOWED ME TO BE ABLE TO SLEEP AGAIN.

Review provided by Sealy

Reviewed On Jul 18, 2026
MAG

So comfortable

This review was collected as part of a promotion

What a difference a pillow makes. My neck doesn’t hurt anymore. This is exactly what I needed. It is so comfortable

Review provided by Sealy

Reviewed On Jul 18, 2026
HappyCamper

Fantastic Mattress

We purchased the Adapt Hybrid mattress 2 weeks ago and it has been a game changer. My husband & I were waking up hurting every morning and tossing & turning a lot. I was also have a lot of neck pain and headaches the past few months. I can already tell a huge difference in our sleep quality and have not woke up with a headache since. They say it takes about 40 days to really break in the mattress but we are already super happy with it. Would highly recommend!

Review provided by Sealy

Reviewed On Jul 18, 2026
Achy Breaky Back

No Support Customer Service Response

We bought the Tempur Adapt and Cooling topper to help with our warm summer nights. I was reluctant to purchase a topper because I didn't wan't to loose the back support our mattress provides. Given the high ratings and the claims for pressure support we bought it. The cooling technology was noticeable to the touch and for the first several minutes of laying on the topper. But trying to sleep through the night was a joke. Way too soft. There isn't any support built into this, it's all the same throughout the entire pad, no unique density to help with back support. And when your body sinks into 3" of memory foam, the cooling effect goes away when you've sunk into the memory foam. I tried to adapt. But after 1 week and no good sleep, I was done. Customer service hasn't responded to my messages, which is consistent with their product... No support and not helpful.

Review provided by Sealy

Reviewed On Jul 18, 2026
Unhappy sleeper

Worst mattress ever

We bought a firm it was a good mattress at first. It is now nothing but mush hurts my back. I can’t get them to return any of my emails because it should be under a 10 year warranty. It is the worst mattress I’ve ever had in my life do not buy it

Review provided by Sealy

Reviewed On Jul 18, 2026