Frisco Self Warming Bolster Round Cat Bed, Gray. There are cozy beds, and then there are self-warming beds. Level up the coziness factor with a bed that radiates your pet’s own body heat to keep them warm naturally. With no plugs or wires, you can keep your pup or kitty nice and warm so they can nap and lounge comfy. It’s the perfect shape to use as a bed on its own or a crate mat, and comes in neutral colors that complement any home décor. Plus, they’re machine-washable so you can keep them clean easily