I took my first temazepam 10mg in Y on a 12 hour flight some years ago
Five minutes after swallowing it, a food trolley came out. Thought, bugger it, I better eat as this may be the only food. Then just as trays were gone the movie came on (yes, the only movie- it was a long time ago) and I really wanted to see it. So I watched it too.
4 hours elapsed and then I was wide awake. What a waste of time
On the next leg, out of Asia to Melbourne, I had 3 glasses of shiraz with breakfast - slept like a baby for about 4 hours!!