The pad is cheaply made. Before I added this to my bedding, my fitted sheets would remain on my bed throughout the night. I have a king mattress and I ordered a king pad, but it seemed small. I double checked the package to verify that they had shipped a king size. Yup. I had to stretch the heck out of it to make the pad fit. Then, every night, it would come off the mattress, pulling my fitted sheets off with it. I would wake up every morning sleeping directly on my bare mattress. After a week, we took the pad off the bed and my fitted sheets remain snug throughout the night. I'm not sure how a product that is supposed to protect your mattress works when it can't remain on the mattress? The product itself is very thin and poorly sewn. What a waste of money!