This Ortho Thermo Heated Pet Bed is the ultimate in pet comfort. Easily Removable Cover for Washing with a blue bottom. Super Comfy Soft Fleece Cover. UL and CUL listed. Quick and Easy Removable Heater. 3 Inch Convoluted Orthopedic Foam. Not One but Dual Premium Thermostats. Size is 17" X 27". Ortho Thermo Pet Bed, Heated. KH4012$59.99 Ortho Thermo Pet Bed, HeatedSame as the above ortho thermo heated pet bed but The size is 27" X 37". Ortho Thermo Pet Bed, Heated KH4022$79.99 Ortho Thermo Pet Bed HeatedSame as the above ortho thermo heated pet bed but The size is 33" X 43". Ortho Thermo Pet Bed Heated KH4032$99.99