This Ultra Firm mattress is designed to give you the stiffest amount of support at the surface, which is ideal for stomach sleepers. A layer of high density foam enhances the durability of the mattress, with a layer of memory foam that provides conforming comfort as it shapes to your body. The innerspring system features individually wrapped titanium alloy coils designed to provide a perfect balance of conformance and support while reducing unwanted motion. A foam encased edge system creates a firmer, more substantial sitting and sleeping edge. This mattress also includes an exclusive Indulge Quilt with tension-relieving foams that will cradle you in complete comfort for a luxurious night's sleep. Box spring not included.