It is exactly what I was hoping for. I just bought a very expensive mattress and learned from my last one that if it gets wet (it was just my water bottle so not even hazardous liquid) it voids the warranty. But I didn't want to smell or feel the cover and this one is perfect. You have to put it on like a pair of pants, which isn't easy with a Cal King mattress, but well worth it and of good quality so no worry that we were going to put a whole it in.