Got this to cover my new mattress but ended up using an old mattress protector from Ikea instead. This is meant to be waterproof which explains why it is a thin plastic lining, but it makes a sound that is very distracting. I read about it in the reviews previous to purchase but wanted to see for myself. I'm sure it does a great job if you can get past the "swishing" commotion at every movement.

Pros: Waterproof, protects against mites
Cons: "Swishing"