Furhaven Pet Dog Mattress | Suede Orthopedic Mat for Dogs & Cats Sizes Snuggly-soft terry fleece sleep surface; water-resistant polycanvas base panel Convolute ("egg-crate") foam for orthopedic comfort and support Zippered, removable cover for frequent washing to keep the bed looking and smelling fresh Foam core is hand washable Jumbo; 35 Inch x 44 Inch x 2 Inch