Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Who shrunk the sheets

I was originally impressed when I first received them, but now I am very dissatisfied with them for one reason; they've shrunk, particularly the fitted sheet that now is a struggle (takes two people) to put it in on. It also "pops" off my king size bed after one or two nights of use and we have to struggle again to get it back on.