Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Don't buy these sheets!

Yes, I have had the problem so many other reviewers have had with these sheets. My fault for not reading the reviews before I bought them! I have washed them about 10 times to try and get some of the stiffness out of them and they are like a board still. Tried the fabric softener trick too and it didn't help at all. Tried to send them back after 30 days (of washing and hoping that they would get better) and got the fabulous Amazon message that they would give me 50% of my money back! Guess I should not have kept hoping they would get less stiff. I am not kidding, sandpaper is more comfortable to sleep on. We took them off in the middle of the night they were so bad! Don't buy these sheets--it has been 3 months of washing them (and not sleeping in them) and I still can't use them.