Merax Pet Bed Pet Denim Mattress Deluxe Dog Bed Memory Foam Pet Bed Overall size: 40L X35W X4H, item weight: 8.64 lbs Pet bed surface is made of snug,soft PV fleece, back is anti-slip fabrics,can be used as dog bed or cat bed Zippered, removable cover for frequent washing to keep the bed looking warm and smelling fresh Waterproof liner protects against accidents, dirt and liquids Memory foam is great for pets with arthritis or joint and muscle problems