its all about routine, i doesnt matter what time i go to bed, be it half 10, or after a night out i never can get to sleep, i always put a film on and normally grab my laptop for half an hour before watching the film. watching a film is almost a bit like meditation, its just a simple task for the mind to focus on instead of laying awake thinking about shit. have you tried things like nytol, my mum had hurrendous trouble sleeping and tried sleeping pills once and hated them, but nytol really helped her or maybe its old age setting in, my nan barely sleep, neither does my granddad, my dads always telling me about how he was up at 3 and just went and did some work