Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Sleep MD

While the ingredients in Sleep MD seem like they would aid you in getting to sleep, it had no effect on me. Whenever I would take one of these pills before going to bed, I would have many vivid, sometimes insane dreams. I consider this a positive side-effect, so I'm giving it two stars. I suppose others may view it as negative, but to each his own.I recently used up all the pills and am contemplating whether or not to buy another box simply for the dreams they give me. Seriously, dude, these dreams are INSANE. Sometimes I woke up in the middle of the night with a horrible fear of impending death, with no idea why I feel that way. Other times I dreamed of all sorts of strange, yet fantastic creatures all around me. Oh, and it also gave me sleep paralysis a couple of times (I woke up but was unable to move any part of my body other than my eyes for about 10-15 minutes).