A comparison between the high and low profiles of the flat foundation with height icons

Choose your perfect foundation

Everyone needs a support system. We take that literally. Our Stablesupport™ Foundation provides for the mattress while ensuring the best mattress feel — coordinates with Sealy® mattress aesthetics.

A comparison between the high and low flat foundation profiles

Stablesupport™ Foundation

Choose Your Perfect Foundation

Everyone needs a support system. We take that literally. Our Stablesupport™ Foundation provides for the mattress while ensuring the best mattress feel — coordinates with Sealy® mattress aesthetics.



America's #1 Mattress Brand America's #1 Mattress Brand



Stablesupport™ Foundation

When we say we're proud to support you, we mean it.

Sealy flat foundation height comparison with blue border

Comfort

A Size For Every Sleeper

Our foundations are available in a 9” height that matches a traditional box spring and a lower 5” profile for a more modern look that will easily fit through more narrow stairways.

Quality

Built to Last

Our flat foundation is designed to support your mattress, for years of comfort to come. This durable foundation is engineered to provide a solid base for your mattress and upholstery to complement any Sealy® Mattress.

Posturepedic Plus mattress on a flat foundation with a blue border
Stablesupport™ Foundation

When we say we're proud to support you, we mean it.

Sealy flat foundation height comparison with blue border

Comfort

A Size For Every Sleeper

Our foundations are available in a 9” height that matches a traditional box spring and a lower 5” profile for a more modern look that will easily fit through more narrow stairways.

Posturepedic Plus mattress on a flat foundation with a blue border

Quality

Built to Last

Our foundation is designed to support your mattress for years to come. This durable foundation is engineered to provide a solid base for your mattress with upholstery to complement any Sealy® mattress.

Round light blue delivery truck icon with yellow checkmark

In-Home Assembly

Your foundation will arrive via white glove delivery. Our dedicated team will assemble your foundation, for easy setup.

Round light blue spool icon with yellow checkmark

Built to Last

Made with high-quality textiles and materials our foundation complements and supports your mattress

Round light blue 10 Year Warranty icon with yellow checkmark

10-Year Warranty

Rest easy knowing that your Sealy foundation is covered by a 10 year warranty. We build to last, so you're covered.



Upgrade!

Personalized Comfort

Sleep better knowing you're supported all night long. Customize your sleep experience with a Sealy Ease® base, with nearly an unlimited range of positions to ensure your best night's sleep. Plus, receive a $200 Instant Gift when you purchase a mattress set.

Light blue adjustable comfort icon with yellow checkmark

Endless Head/Foot Positions

Light blue delivery truck icon with yellow checkmark

Free Delivery & In-Home Set-Up

Upgrade!

Personalized Comfort

You can't sleep right unless you're supported right. Customize your sleep experience with a Sealy Ease® base, with nearly an unlimited range of positions to ensure your best night sleep. Plus, receive a $200 Instant Gift when you purchase a mattress set.

Shop Now

Sealy Posturepedic Plus Mattress on a Stable Support Flat Foundation

Raise your level of

Comfort.

Help give your new mattress a lift with the right base. You’ll step up to a new level of comfort by adding one of these options to your sleep experience

Sealy Posturepedic Plus Mattress on a Stable Support Flat Foundation


Raise your level of

Comfort.

Help give your new mattress a lift with the right base. You’ll step up to a new level of comfort by adding one of these options to your sleep experience

Close
Improve Your Shopping Experience

You’re using an unsupported web browser.
A list of the most popular browsers can be found below. Just click on an icon to visit the download page.

Close
Your Software is Out of Date

Your phone or tablet is using software unsupported by our website. To improve your shopping experience, please update your device to the latest version of iOS or Android OS.