Keep Cats Warm With Slumber PetTM Thermal Cat Mats. Thermal Cat Mat keeps cats warm and comfortable without the use of electricity. Features a lightweight core that actually reflects pet’s own body heat back to the animal. Provides soothing comfort to cats, kittens, aging pets, nursing females, or animals recovering from illness or injury. Machine washable pad features a leopard motif on gray plush that reverses to solid black berber fleece. Measures 22″L x 18 1/2″W.