OK, I've taken many overnighters but never took ambien or lunesta or any of that stuff to help me get to sleep. I'm considering trying this for the next long flight (SFO - PEK) and my big fear is I enjoy wining and dining in F class, take the ambien, and DON'T GET TO SLEEP. Next day, I am a complete zombie and feel even worse than I normally do after a flight like that. Anyone have that kind of experience? I know the caution on the TV commercials says you must be prepared to devote 8 hours to sleep when taking this stuff.

Anyway, what's been your experience?