The Thermo Pet Mat will be your cat or dog's favorite place to nap. Machine-washable cover makes it easy to care for and keep clean. Dual thermostats regulate temperature of the heater buried under the soft foam. Pet is comfortable up to 102-degrees when lying on Thermo Pet Mat. The heater is set to keep the surface 12 to 15-degrees above ambient air temperature and warms to a pleasing 102-degrees when the pet lies upon it. While this is perfect for cold months, many cats and dogs are chilly in the summer and love this bed to keep them warm. But, even if you don't use air conditioning, most pets love the feel of this bed, so all you need to do is remove or unplug the heater for use during warmer months.