There is a K&H Ortho Thermo-Bed for all sizes of dogs. Its two layers of orthopedic foam sandwich our pet bed warmer for the utmost of warm, cozy comfort. The unique dual thermostats maintain an even surface temperature of 12-15 degrees above ambient air temperature to complement the body temperature range of your pet. The heater is removable for washing. Recommended for indoor use. MET listed.?