Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Too Thin

I had high hopes for this product given the reviews. I'm 35 weeks pregnant and have been dealing with a lot of tailbone pressure that is pretty intolerable after sitting at my desk for hours at a time. I had hoped this cushion would relieve some of that pressure, but the foam is simply too thin and you end up squeezing the cushion down so much that the ring basically touches the seat, rendering it useless. I think one of the inflatable cushions are probably a lot more effective, but I really didn't want to be sqeaking at my desk!