Created with durability in mind, our StableSupport™ Foundation has been engineered to provide the ideal surface for Sealy® mattresses.
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.
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.
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®.

Size Availability:
Twin Long: 79" x 38"
Full: 74" x 53"
Queen: 79" x 60"
King: 79" x 38" (each piece/2-piece foundation)
CA King: 83" x 72"
Split King: 39.5" x 38" (each piece/2-piece foundation)
Split CA King: 41.5" x 36" (each piece/2-piece foundation)
*Product sizes are listed in Length x Width.
Height:
- High profile foundation raises mattress up to 9” over frame.
- Low profile foundation raises mattress up to 5" over frame.
- Suitable for all types of mattress including foam or innerspring.
- Fits most standard bed frames.
Warranty:
Your Sealy® foundation is covered under a 10-year limited warranty.