I'm taking a long flight tomorrow for work at 4pm. 9hrs 45, then a 5 hour layover, followed by another 90 minutes. Will be getting in at 7/30am UK time which is 11.30pm local time. Can anyone advise me on when the hell I sleep?! I have sleeping pills prescribed (Zopliclone) but not sure if I should take one on the the first leg or not. Please help - I'm in a week long workshop starting the day after I arrive and I'm useless on no sleep!