Orthopedic Egg Crate Design: This orthopedic dog bed features an egg crate foam surface that evenly distributes weight, relieving pressure on dogs' joints and spines, making it ideal for senior pets. Bolstered Design: The 4-sided bolsters provide extra support for your pet's head and neck, encouraging restful sleep while the surrounding soft sides create a snug, cozy sleeping area. Cozy and Washable: The soft plush surface and Sherpa fleece cover provide warmth and comfort, while the removable zippered cover allows for easy machine washing to keep the bed fresh. Multiple Size Options: S : 20x19 inches,weight 5 to 10 pounds, M: 24x20 inches, weight 10 to 20 pounds, L : 30x24 inches, weight 20 to 35 pounds, XL : 35x28 inches, weight 35 to 50 pounds, XXL : 41x30 inches, weight 50 to 80 pounds. XXXL: 48x35 inches, weight 80 to 120 pounds. Assemble dog bed：vacuum-packed for convenience, please open the packaging and leave it for 48 hours before assembling the dog bed. Love Pet - Enjoy Life Perfect for indoor and outdoor use.Thanks to its water and dirt-resistant zippered cover, unwanted dirt or stains will no longer be a worry for the pet owners. Just toss in the washing machine and provide a long-lasting healthy, clean environment for them. Tips The dog bed is vacuum-packed, when you open it, you may see a crumpled dog bed. Don't worry. Our product is made of high elastic artificial fibers. After taking out, please gently pat and shake the pet mat with your hand, then let it sit for a while, the whole mat will get warm and thick. After you have used the dog bed for a period of time and have started the first cleaning and drying of the product, our dog bed will be as full and bouncy as it was when it was made.