Finally, a solution for your arthritic pet's pain! The FurHaven Quilted Full Support Orthopedic Sofa Pet Bed has a smooth surface providing your pet comfort while the solid orthopedic foam base supports your pet's joints and pressure points. This full support solid slab orthopedic foam provides even more support and comfort. The sofa pet bed has three walls to give your pet a variety of positions to lay in while remaining comfortable. Your best friend deserves a good night's rest and now, it's possible. With its very own orthopedic pet bed, your loved one will have maximum comfort for a great night's rest. Any position will do on this sofa pet bed! With soft side walls and a snuggly pinsonic quilted sleep surface, your pet won't need to count sheep to drift into deep slumber on this orthopedic pet couch. Cover of the orthopedic sofa pet bed is easily removed and machine washable for your convenience Solid orthopedic foam base of the sofa pet bed supports your pets joints and pressure points Three walls on the sofa pet bed allow your pet to lay in a variety of positions Quilted sleep surface on the orthopedic pet bed for a soft feel Small - 20" x 15" x 5.5" (foam: 3" - sleep surface: approx. 15" x 12") Medium - 30" x 20" x 6.25" (foam: 3" - sleep surface: approx. 22" x 15.75") Large - 36" x 27" x 6.5" (foam: 3" - sleep surface: approx. 27" x 22") Jumbo - 40" x 32" x 8" (foam: 4" - sleep surface: approx. 30" x 27") Jumbo Plus - 53" x 40" x 9.5" (foam: 5" - sleep surface: approx. 41" x 34")