The Tommie Copper Performance 12-inch Medium Hybrid Mattress in a Box provides the perfect balance of firm support and pressure relieving comfort to help you get your best sleep. It features patented Znergy fabric that infuses zinc and copper to inhibit the growth of bacteria at the surface of the bed so you breathe easier throughout the night, multiple layers of cooling comfort for temperature regulation while you sleep, elate memory foam to ease pressure points for effortless comfort and individually wrapped zoned coils designed to provide air flow and precision-based support to each unique area of the body while minimizing partner disturbance. Patented Znergy® fabric that infuses zinc and copper to inhibit the growth of odor causing bacteria. Two layers of cooling gel foam for temperature regulation.