Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very disappointed

I'm hoping I'm the only one with this problem. When I put the pillow into a cover I bought, almost 1/4 of the pillow's stuffing sunk down. After about a week, it slipped even more. The pillow is now about 1/2 it's size. Not worth the money; especially since it's not as dense as I expected. Guess I'll have to go to the store and buy extra stuffing to get it back where it was which is the perfect size for me. The size (when fully stuffed)is the only good thing I have to say.