100% Polyester BRINGS NEW LIFE TO YOUR MATTRESS and MULTI-USAGE- Saving yourself from the uncomfortable bed without spending high replacement fees, you need one Novilla mattress topper full . Our 3 inch foam mattress topper utilizes a 2-Layer design. Includes 1inch cooling gel memory foam and 2inch bamboo charcoal foam, adds extra plushness and softens firm mattresses,bounces of your traditional spring mattress, enjoys minimized motion transfer and prolongs your mattress life.Suitable for sofa bed, guest bed, RV, college dorms, Tatami, camping, outdoor Yoga and more. PREVENT BODY ACHES, COOLER RESTFUL SLEEP- High-density memory foam conforms to your curves and spinal alignment, helps to relieve pressure points and enhances supportive, prevent shoulder/back/hit pain caused by over sinking or hard mattress. Suitable for side/back/stomach sleepers. Open cell and egg crate foam structure design improves air flow and breathability, regulates temperature and prevents overheating for better sleep.