Egg Crate Foam: 3" high mattress-like foam dog bed evenly distributes pet’s weight, which provides maximum support and comfort for dogs and cats of all ages, especially puppies or older dogs. Ultimate Sleep Surface: Plush Sherpa top pet bed creates extra coziness for your four-legged friends to sleep like a log every night. Reversible Design: Built with Oxford fabric on the bottom and sides, the dog bed can hold up to daily wear and tear. Smart Design: Rectangle shaped mattress is perfect for your pets to sleep and roomy enough to stretch out. It also can be placed on any elevated dog bed & dog bed trampoline or in a crate & pet house. Easy Care: Zippered, removable cover that’s machine washable for quick cleaning up. The inner egg crate foam is not washable.