12-inch gel memory foam mattress with deluxe cover * Our revolutionary gel memory foam is made with our exclusive open cell memory foam and gel support beads; Serta gel memory foam is designed to provide custom support where you need it most and a cooler sleep surface * A revolutionary advance in sleep technology; provides a deeply restful sleep that relaxes, refreshes and rejuvenates; made in the USA; spot clean only * Serta exclusive 3-layer construction; 2-1/2-inches of gel memory foam for cradling comfort and support; 2-1/2-inches of ActivAir foam responds to body pressure with customized support and continuous airflow; 7-inches of high density support foam for long lasting durability and support