"I have trouble falling asleep, and staying asleep. I have tried lunesta in the past and it didn&#039;t work. It put a terrible taste in my mouth for days. I have been on silenor for 3 nights now, and it isn&#039;t working for me. I took 6 mg at 9 pm, and was still awake at 3 am this morning, hadn&#039;t slept at all. It has been this way for all 3 nights. I have again developed a terrible taste in my mouth, so bad that I am going off this pill."