Copper Gel Memory Foam: The Ventilated Copper Gel Infused AeroFusion Memory Foam layer facilitates air circulation, while the Liquid Gel Flex Foam layer regulates moisture and temperature. The high-density base foam provides optimal support for your neck and shoulders, ensuring a comfortable night's rest. Soft Cover & Fiberglass-Free FR Inner Cover: Featuring a breathable and soft jacquard fabric cover, the fabric is smooth and comfortable, absorbent, and allows sweat to evaporate easily, keeping your skin dry. This allows you and your family to enjoy a comfortable and refreshing night's sleep without waking up from overheating. It also has a Fiberglass-Free FR Inner Cover, which eliminates the risk of skin irritation, breathing problems, and other health risks for you and your family. Medium Firm: The top layer of the mattress features breathable, cooling foam that is soft and conforms to the body, while the supportive bottom layer of foam ensures optimal spinal alignment and muscle relaxation.