Give your pet the restful sleep they deserve with a NAP Deluxe Orthopedic Pet Bed. Deep convolute foam provides your pet with extra support and cushioning for maximum comfort. Your pet will benefit from the convolute (“egg-crate”) orthopedic foam which is designed to evenly distribute weight and alleviate painful pressure on muscles and joints. Orthopedic convolute (“egg-crate”) foam has the added benefit of keeping your pet warmer in cool winter months and cooler in hot summer months. Better rest for your pet can lead to improved health. This bed also features an easy step-on “mat” design for older & disabled pets. Both cover and core are washable. Sleep surface dimensions: 27″ x 36″. Foam depth: 3″. Cover wash instructions: Remove cover from foam core. Zip closed. Machine wash cover separately; cold. Line dry or machine dry on low. Core wash instructions: Spot clean foam with mild soap. Press excess water from mat. Do not wring. Air dry.