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.
$250.00
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 BrandStableSupport™ 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
Best quality I’ve ever sleep
Oct 25, 2026
The product is awesome. The delivery service was amazing.
Low profile box spring perfect match for Sealy mattress.
Oct 24, 2026
Previous 9” box spring was to high. This new one is perfect.
Great box spring
Oct 13, 2026
Ordered online from Sealy directly. Easy ordering process and it was delivered sooner than promised! The delivery guys were great! Stayed in touch all day and let me know when they were 5 minutes away. Very clean and careful. Lower profile box spring works well with my existing Sealy mattress. Excellent experience overall!
Simply supportive
Oct 3, 2026
The base is easy to handle simple compact and supports as a large foundation in a compact size further
Giving the most space to support ratio.
Quality product
Sep 23, 2026
Product was exactly as described. I am satisfied with the quality of the product and how well it met my needs.
Easy peasy with white glove delivery
Aug 29, 2026
Amazing quality product. Didn't have to assemble. White glove delivery was so nice - they picked up my mattresses and put the box springs underneath.
