I bought this for my new bed and it seemed nice. Fit the new mattress well. But after a week of sleeping on it, I've noticed I've woken up feeling sweaty and humid. The waterproofing is not breathe-able. I bought the waterproof one because I sleep with a cat and don't know what he might end up doing, but that random chance of a midnight hairball or accident isn't worth the dampness it holds in nightly. I will be looking for one that doesn't have the waterproofing.