Orthopedic Support: The Mekiy memory foam dog bed features 3 inches of 28D high-density egg crate foam that soothes your dog's muscles; reduces pressure points; and relieves aching joints; making it ideal for older; anxious; or arthritic dogs Waterproof and Machine Washable: Waterproof extra large dog bed cover protects mattress from urine and spills; Easily removable and machine washable with low heat tumble dry U-Shaped bolster: U-shaped bolster large sized dog bed supports head and neck; No half-side railings for max stretch and relaxation space Size Guide: Mekiy XL large sized bed (42x30x8 inches) is suitable for dogs weighing less than 75 lbs; for dogs that enjoy rolling around or need extra space; sizing up will provide greater comfort 24/7 Customer Support: Mekiy offers 24/7 customer service; reach out promptly for any issue; we ensure satisfactory after-sales support Large dog bed, Waterproof,Orthopedic, Easy to Clean, Durable, Removable Cover