15% Cotton, 85% Polyester Set Up: Simply take your mattress out of the box and enjoy watching it decompress; Jumping, walking, and sleeping on your mattress can speed up the process Medium comfort Mattress is perfect for you to find a real sleeping position; Infused bamboo charcoal helps regulate moisture, temperature, and odor The fabric finish on the top layer gives extra comfort and smoothness; Ideal for stomach sleepers and those who enjoy a reactive feel High density Charcoal Memory foam lets your joints and spine rest comfortably; Memory foam supports lower back, allowing spine to stay neutral