The first and only dog bed cover that has FDA medical device certification. Using your dog's body as its power source, Bully Beds infrared ion advanced ceramic coated fibers reflects far infrared  ray (FIR) emissions that are naturally emitted by body heat back to the skin. The FIR dilates blood vessels, which  temporarily increases blood circulation and enhances tissue oxygen levels. These infrared emissions are then  absorbed deep into the tissue, providing increased energy, recovery time and reduction of discomfort. Finally,  the fabric reflects the FIR, allowing heat to escape, which moderates sleep temperature and keeps the bed from  sleeping hot. - Infrared covers to fit our original Bully Bed   - Super soft, but durable, microfiber - Washable and removable - Zips on and off with ease - Available in gray or chocolate - NOT A COMPLETE BED...THIS IS ONLY A BED COVER