This is not really a tip I'm affraid, but all I ever do is stay on UK time wherever I am, whenever I can.

If my schedule means I can't stay on UK time, I stay as close as possible.

Prior to a flight I always have a 'couple' of glasses of wine about three hours before I will want to sleep, and eat about an hour before I want to sleep. That way, your diestive system is at full blast when you want to sleep and that naturally makes you sleepy.

The only other thing I believe is that if you go on a flight with the attitude 'I do not sleep on flights' you won't!

Enjoy the flight and think positive!
MF