I bought this bed a year and a half ago for my older dog. He loved it! But he recently became incontinent and the cover of the bed DID NOT protect the memory foam inside. That claim of being waterproof is the primary reason I bought this rather expensive bed. I knew from experience that older, neutered male dogs often suffer incontinence. 

Unfortunately, the foam is smelly and stained and the company isn't standing behind their advertised claim because I bought it 18 months ago nor are they able to replace the foam even though i was willing to pay for it. FWIW, the liner and cover washed up fine. But I'm not happy to have a stinky bed that cost $240 with no available options for continued use.