Purest Of America 6 inch Mattress with 2.5 inch Memory Foam (CALIFORNIA KING) Made in the USA Mattress layers includes 2.5 inch memory foam, 1.5 inches soft comfort foam and 2 inches of high density foam base Reacts to body heat and weight by molding to sleeper's body Comes with 25 Year Manufacturer's Warranty Meets Federal Flammability Standard 16 CFR 1633