Orthopedic Sherpa Top Dog Pet Bed with Memory Foam and Removable Cover by PETMAKER: MEMORY FOAM: The 4" 100 percent polyurethane, orthopedic foam insert is a combination of memory foam and high density foam for maximum comfort and durability. Senior and arthritic pets are especially appreciative of the joint support this bed provides. Spot clean with mild soap and water, air dry. REMOVEABLE AND MACHINE WASHABLE COVER: The 100 percent polyester micro suede with sherpa top removable cover is easy to clean and has a non-skid bottom. For best results, machine wash or clean with a light vacuum. 20" (Length) x 15" (Width) x 4" (Height) Recommended for dogs or pets 20 lbs or less 30" (Length) x 20.5" (Width) x 4" (Height) Recommended for dogs or pets 20: 45 pounds 36" (Length) x 27" (Width) x 4" (Height) Recommended for dogs or pets 40: 65 pounds 44" (Length) x 35" (Width) x 4.75" (Height) Recommended for dogs or pets 65: 100 pounds COLORS: Tan, Brown, or Gray 100 percent CUSTOMER SATISFACTION GUARANTEE: We are confident that the PETMAKER brand products are the highest quality and workmanship, however if you are not completely satisfied just return the item for a refund. NOTE: This is an exclusive product of PETMAKER and ONLY Orthopedic Sherpa Top Beds with Memory Foam from PETMAKER are GUARANTEED to be genuine.