Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Sweaty

First off, let me say that I paid $46 (queen size) for this pad 2 weeks ago, I don't know what is up with the $109 price. The pad is well made, it fits fine on the bed and it is a tad cushy what with the terry cloth top. What I didn't know when I bought it is that is has a waterproof or maybe just water resistant backing. I think this is what makes for a sweaty night's sleep. Very uncomfortable.