Master the art and science of a great night’s sleep with help from the StableSupport™ Sealy Masterbrand twin foundation. Offering more support and comfort than a traditional box spring, this 5-inch low-profile foundation helps gently cradle your body and absorb motion transfer while preventing mattress sagging for a superior sleep experience, night after night. Rest assured, the foundation’s 5-inch low profile enhances your sleek design sensibility.