K&H Thermo-Kitty Bed in SageThe K&H Thermo-Kitty Bed in Sage has a dual thermostat 4 watt heating unit buried deep within its thick, super soft, orthopedic foam base. It warms the surface 10-15 degrees above ambient air temperature to your cat's normal body temperature when in use. Washable cover for added convenience. This classic bed is an attractive addition to any room in the house. Indoor use only.