This is the second time that I have reviewed this product. As I said in the first review, this mattress cover does not fit the new mattress that we bought. We have had the Tempur-pedic mattress for a little over five years with the old cover on it and it fit just fine. We got a new mattress with this new cover and it does not fit. It will not stay on the edges and it wrinkles up underneath us as we sleep. Very disappointed in this mattress cover. Wish we could have the old type back. Thank you.