I cannot sleep on planes, even on 14.5 hours to DXB on EK J ... I did eventually fall asleep about 6 hours in, after two zzz-quil and probably 3 glasses of champagne... that was 1-1.5 hours at best. I'm too jumpy a flyer, I look over at people who are asleep at take-off or just after and am full of JEALOUSY!