This was the second one I purchased so that I'd have one for both my mattress and my box spring. I absolutely love them! The material feels so soft and luxurious they could practically be high-end bed sheets! My only complaint is that they don't come in enough sizes. I have a double sided pillowtop mattress, which means that my mattress is particularly thick, and I really had to strain to get the bag on it properly. I managed, but it was a tight and difficult fit.