Insomnia
"This drug is horrible.  I was given this drug because I wasn&#039;t sleeping more the 2 hours a night.  I took it for 4 nights, and it made the sleep problems worse. On the forth day it started messing with my head. I stop taking it . I went on the Lunesta message board and found a lot of other people who had the same reaction. Some people even had worse problems with this drug."