Made of durable suede with a fleece top. Our beds come with three separate foam layers that allow placement of the bed warmer for just the right amount of heat. Each bed is heated by a 12H Pet Bed Warmer that is included. The warmer plugs into any standard 120 Volt outlet but provides 24 Volts to the heater for safety. Made of durable faux suede with a fleece top.Beds come with three separate foam layers that allow placement of the bed warmer for just the right amount of heatEach bed is heated by included 12H Pet Bed Warmer