Assembled in the USA
Sealy® StableSupport™ Foundation
Created with durability in mind, our StableSupport™ Foundation has been engineered to provide the ideal surface for Sealy® mattresses.
$350.00
FREE IN-HOME DELIVERY in 2-3 Weeks
without affecting your credit score.
Assembled in the USA
Choose your perfect foundation
Everyone needs a support system — and we take that literally. Our StableSupport™ Foundation is designed with your mattress in mind, providing a sturdy base and optimizing your mattress's comfort.
Choose Your Perfect Foundation
Everyone needs a support system — and we take that literally. Our StableSupport™ Foundation is designed with your mattress in mind, providing a sturdy base and optimizing your mattress's comfort.
America's #1 Mattress Brand
StableSupport™ Foundation
The ideal support for Sealy® mattresses.
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
Long-Lasting Materials
Our flat foundation was made for your mattress to ensure years of comfort and support to come. This durable foundation is engineered to provide a solid base, with upholstery to complement any Sealy®.
StableSupport™ Foundation
The ideal support for Sealy® mattresses.
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
Long-Lasting Materials
Our flat foundation was made for your mattress to ensure years of comfort and support to come. This durable foundation is engineered to provide a solid base, with upholstery to complement any Sealy®.
America's #1 Mattress Brand
In-Home Assembly
Your foundation will arrive via white glove delivery. Our dedicated team will assemble your foundation, for easy setup.
Built to Last
Made with high-quality textiles and materials, our foundation complements and supports your mattress.
10-Year Warranty
Rest easy knowing that your Sealy foundation is covered by a 10-year warranty. We use quality materials, so you're covered.
Need an Upgrade?
Personalized Comfort
Sleep better knowing you're supported all night long. Customize your sleep experience with a Sealy Ease® base, with a nearly unlimited range of positions to ensure your best night's sleep. Plus, receive a $200 Instant Gift when you purchase a mattress set.
Endless Head/Foot Positions
Free Delivery & In-Home Set-Up
Need an Upgrade?
Personalized Comfort
Sleep better knowing you're supported all night long. Customize your sleep experience with a Sealy Ease® Base, with a nearly unlimited range of positions to ensure your best night sleep. Plus, receive a $200 Instant Gift when you purchase a mattress set.
Raise your level of
Comfort.
Give your new mattress a lift (and protect your investment) with the right flat foundation. You’ll step up to a new level of comfort by adding a 5" or 9" Sealy® foundation today.
Have a question about this product? Visit our FAQs
What people are saying
The product must h just got made you could smell the pine.
Apr 5, 2026
I needed something less tall and this was perfect. Good sturdy product to compliment my new mattress.
Perfect Foundation
Feb 26, 2026
This was perfect for my minimalist bed frame and really helped my bed with extra support!
The 5" foundation was the perfect height for my needs.
Feb 17, 2026
It was the perfect height to match my Sealy mattress that I love
Great!
Jan 20, 2026
Great support, sleep better overall.
Easy and Seamless Process with Quality Results
Jan 15, 2026
Everything was easy - order online, get notified when delivery will take place, delivery on time, new mattress installed, and old mattress removed. No easier or more convenient way to order a mattress.
Solid purchase
Jan 8, 2026
Simple, but effective foundation.
