Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a pleasant experience

I have no doubt that there is something in the tones that affect you. The problem is that, with me, the effects were negative. Maybe it is just a matter of it affecting different people differently, or maybe it's a matter of how fast you fall asleep and if you are in the right state as the CD advances. For whatever reason, the longer the CD went on the worse I felt. It was like a weird sensation building in my head. I tried this several times to rule out a fluke, but each time it was the same. I never got fully asleep with this CD. The most I got was a half awake, half asleep state that I had trouble waking up from. It was a creepy and unpleasant feeling. Each time I had to fight to fully wake up so that I could turn it off. Maybe it works for some people, but I have to rate it on my own experience.