insomnia
"Took Lunesta for the first time last night and it gently put me to sleep. I have had a lot of anxiety about falling asleep. At first I was a little hesitant that I needed prescription medicines to sleep. I was able to get about 6-7 hours of sleep that I desperately needed. No metal aftertaste. I used Ambien in the past and woke up and threw up and had a miserable headache all day. That is not the case with Lunesta."