Orthopedic extra large dog bed with waterproof layer and anti-slip bottom. Made with 100% polyester shell and quilted design for comfort and warmth. Features high-density egg crate foam for even weight distribution and joint support. Includes a removable, machine-washable cover with L-shaped zipper; foam core is not washable. Waterproof barrier helps prevent urine and saliva from soaking in, reducing odors and mess. Bottom made of durable oxford cloth with non-slip dots to keep the bed in place during use. Measures 42 x 30 x 4 inches and supports dogs up to 90 pounds. Ships vacuum-sealed; allow approximately six hours to fully expand after opening