FOAM ORTHOPEDIC DOG BED:This dog sofa is made of egg orthopedic foam, the thick dog bed helps cushion pressure points and supports the dog's joints and muscles evenly. Therefore, orthopedic dog beds can relieve the discomfort of anxious older dogs and dogs with arthritis and promote better sleep at night. SOFT SURFACE & WATERPROOF - The surface of large dog beds is made of high-quality soft and cozy fluff. The pet bed is skin-friendly, non-pilling and gentle on dogs' sensitive skin, nose and paws. There is a waterproof layer on the mezzanine cover of the dog sofa to prevent liquids from wetting the egg foam. SIZE (BEDS FOR LARGE DOGS) - The dimensions of this XL dog bed is 42" x 30" x 7.5". XL dog beds for extra large dogs up to 80 lbs. If you want more space for your pet, it is recommended to choose a larger size dog bed. EASY TO CLEAN & NON-SLIP The dog sofa bed comes with a removable and washable pillow cover to ensure that the large dog bed can be easily cleaned. The washable dog bed has a durable zipper that allows for easy removal and reattachment. The non-slip rubber particles of the waterproof bottom of the dog bed keep it in place on the floor without slipping.