Zinus Extra Firm iCoil 10 Inch Support Plus Mattress, Full 1	.5 inch top Comfort Foam layer, 1 inch High Density Foam Support layer 7.5 inch base layer of over 10% more individually wrapped coils assures no motion transfer Extra firm support Only the Highest Quality of Foam - Foam is CertiPUR-US Certified for durability, performance, and content Worry free 10 year limited warranty