"Our mattresses feature Negative Ion Aerobic Fabric. It contains 18 amino acids that are beneficial to human health, protecting and nourishing the skin. Keeps the mattress surface at the ideal sleeping temperature; keeps you warm in winter and cool in summer. The Memory Mattress is designed with a two-layer full foam system. Its gentle touch makes us feel floating on the water and naturally conforms to the contours of the body, allowing optimal relaxation for the entire body, creating a deeper, longer and sweeter sleep. Mattress design combines expertise and the finest materials with advanced sleep technology. Memory foam mattresses allow your body to adjust to the most natural sleeping position and absorb 95% of your body's pressure to support your weight and prevent lower back injuries. Specifically designed for side sleeper, back sleeper, or stomach sleeper.Allows you to flexibly match various sleeping positions to achieve ""Zero"" restless sleep."