The PSX Low Profile Foundation by Serta offers exceptional support for your mattress while adding a sleek 6-inch lift to your bed. This is a durable alternative to a traditional box spring. It is designed to extend the life of your mattress and enhance your sleep by isolating motion between sleepers. Backed by a 10-year limited warranty and proudly designed and built in the USA, this CertiPUR-US certified foundation combines quality, comfort, and durability for a restful night’s sleep.