insomnia
"I was taking Ambien 12mg, which in my opinion is the best sleeping pill on the market right now. I heard about Lunesta and I decided to give a try. My Doctor prescribe the 2mg. Hours passed by and I'm still waiting for it to kick in. Nothing. I made a huge mistake by changing from Ambient for  Lunesta. Now I have to wait for a month to go back to Ambient. If you're thinking of switching or trying Lunesta. Don't even bother. I guarantee you Ambient is the best option"