Bought this in December for my sons new mattress- which was an 11 inch pillow top.  Cover fit well- with some space- could probably fit a larger mattress easily.  Was not difficult to put on- fabric is tight woven and sturdy, cover is well contructed- zipper is well made.  It does not have that 'crinkle' or 'plastic' sound when you get on the bed.  My son is a teenager- so he eats on the bed- jumps around- and this cover has been perfectly fine so far.  Worried he would rip it- its holding up.  Got this because of the 'maple syrup' incident with his old mattress- do have a regular mattress pad on top of it.  Intend to purchase one of these for our motor home mattress.