Night Therapy MyGel 8 Inch Memory Foam Mattress, King Sleep cool layering system-2 inch MyGel Memory Foam, 2 inch Pressure Relief, and a 4 inch High Density Foam Support layer Foam is CertiPUR-US Certified for durability, performance, and content 10 year limited warranty Smartly shipped using patented technology that allows the mattress to be efficiently compressed, rolled and shipped in a box conveniently to your door