This protector is too large for my tempur-pedic mattress. The 8-14" range is far too generous. My 13" mattress left the mattress cover pooling on my bed. Not to mention you can hear it every time you move. I was so hoping this product would help me extend the life of my Luxe Breeze mattress, but no such luck. The absolute worst part is that Tempur-pedic doesn't allow for returns. It's a gamble I wish I wouldn't have taken and now I'm hesitant to buy sheets in case I don't like them. But I'm struggling to find anything that fits the shallow depth of the mattress.