I love the bed for my dogs, the comfort is perfect.  We went to put the protector on to keep the memory foam protected and the zipper broke. I read some reviews that said they had issues with the zipper but not a lot so I figured it would be fine. I also feel that the large size would have been sufficient vs the extra large.  Some of the reviews were confusing on the size as well.  It would be a 5 stars if the zipper was better quality and didn’t break the first time we tried to unzip it.