I don't like sleeping pills ...
but these are very good. My dad said they were good so I just tried one last week. The only time I took a sleeping pill while flying, I was flying as a courier sfo-bkk for $300 (and got the miles), I took the pill before the flight and was bumped to first class for the first leg (never happened again) and slept the whole flight. I don't like sleeping pills, but these don't leave the usual drowsiness the next day.