Purest Of America 8 Inch Memory Foam Mattress (Twin) Mattress layers have 1 inch memory foam, 2 inches soft comfort foam and 5 inches of high density foam base Reacts to body heat and weight by molding to sleeper's body Relieves pressure points, preventing pressure sores Comes with a 25 Year Manufacturer's Warranty Meets Federal Flammability Standard 16 CFR 1633