The zipper is super cheap/flimsy. My dog had it pulled apart in no time then ripped open the cushion which is filled with tiny shredded memory foam. YIKES! I had memory foam literally EVERYWHERE when I got home. He's never destroyed a bed before, so the only thing I can think of is the fact that the zipper came open so easily. Please don't fill dog beds with shredded bits of foam. Hopefully he won't have any blocks either from eating it.