A cool-to-the-touch mattress with pressure-relieving HexCloud Gel Foam and 825 Edition Custom Support Coil System. Bask in the cool pressure relief of the Perfect Sleeper® North Park mattress. Under the cool-to-the-touch surface Sertas exclusive HexCloud Gel Foam and 825 Edition Custom Support Coil System with BestEdge® Foam Encasement work together to provide pressure-relieving support all night long. "CoolFeel Fabric: A luxurious breathable cover with a cool-to-touch sensation from technology that is plant derived*. *Our biobased phase change material consists of 53% biobased content and is certified through the USDA BioPreffered® Program."