Our exclusive Rest & Renew by Zinus 8’’ gel foam mattress provides greater coolness and relief at an excellent value. Back and stomach sleepers will love the cushion firm comfort level, providing contouring softness and support. A comfort layer of gel-infused memory foam gives sleepers all-night cooling and pressure relief. High-density foam keeps you comfortable throughout the night. Stay supported with an additional, yet thicker layer of high-density support foam. A breathable, knitted Jacquard quilting layer maintains airflow, adding to your sweet dreams. Unbox, unroll, and unwind with the easy bed-in-a-box design. This hypoallergenic mattress is made with eco-friendly CertiPUR-US foam that meets rigorous standards for emissions, content, performance, and durability. Mattress protector recommended. Adjustable base compatible.