ColdHeat Dolce Vita Therabed Heated Pet Bed (Rectangle), Small Low-level warmth helps improve your pets overall health and daytime activity level by easing sore joints and muscles, stimulating circulation and reducing separation anxiety. Therapeutic foam padding provides edge to edge comfort and evenly supports and balances your pets body weight to eliminate pressure points, reducing stress on muscles and bones. The cover is water, stain and scratch resistant and can be easily removed and machine washed. Powered by AC/DC wall adapter or included auto adapter (optional rechargeable battery pack also available). Small Size measures 24-inch by 20-inch (Interior sleep space 17 x 14). Recommended for medium-larger cats and small dogs