Your good night of sleep starts with the Wolf Visco Comfort Mattress. Featuring a 6-inch base layer of high density polyurethane foam, this mattress also has 2-inches of viscoelastic foam (also known as memory foam). It relieves pressure and enhances deep sleep by reducing pressure points and eliminating movement. It conforms perfectly to your body while distributing weight, improving circulation, and allowing blood flow. This mattress also reacts to your body temperature, so no more restless, uncomfortable nights. A stretch knit fabric cover goes over the mattress.