Hmm, considering the number of PCs reporting trouble falling asleep at night I'll give this piece of advice: put something boring on youtube to listen to before you go to bed. Like a couple hours of a let's play or a podcast you don't care much about. Listening to that stuff keeps your own thoughts from going into overdrive the way they would if you were just laying there wishing you could fall asleep.
Be careful not to put something interesting on, because you'll pay attention to it and stay awake.
Be careful not to put something interesting on, because you'll pay attention to it and stay awake.