br Memory Foam dog beds can help your pet be more comfortable.   Especially dogs with hip dysplasia, joint problems, or arthritis. This amazon dog memory foam bed comes with 2 covers - one is high quality denim, and the other is a taffeta WATERPROOF fabric zipper cover. This pet bed comes in several sizes, including Large and extra large. Fact: The raw denim fabric alone for this cover is sold from $39.99 to $49.99 in the big fabric retail stores. br br Machine washable and machine dryable.