Our exclusive Rest & Renew by Zinus 12’’ gel foam mattress provides ultimate coolness and relief at an excellent value. Side and back sleepers will love the plush comfort level, providing soft, underlying 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.