"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."