Exactly Magie06 - i generally am able to get to sleep at a reasonable time. But, for example, last night i went to sleep at 10:30. I was awake at 11:45, 1:30, 3, 5:30 and then woken by alarm at 7

I don't touch caffeine after 3pm hard deadline.
I drink several litres of water a day
I don't eat sugary things late at night
I listen to stuff in the dark in bed rather than watching anything (some nice audiobook or a meditation or something)

But i sleep like crap