This mattress protector is waterproof and what I like most is that it is quiet and doesnt have any weird barrier that crinkles to keep it waterproof and breathable. This fits a wide range of mattress depths and mine is about 13, which it fits with ease. This is soft and in summer I find it to be cooling. I recommend this to anyone wanting a mattress pad that is soft and cooling. The waterproofing is a bonus! Highly recommend!