Sleep rules. It's the best next thing to being unconscious because it keeps you away from the harsh world outside your head and it's healthy at the same time. Unless you sleep 12h a day which is called lazy and will make you die.
But today we assume you have sleeping problems, so here are some remedies I have found to always work on me that don't include any drugs.
1. Listen to an audiobook. Distraction works great. I've tried with music but it only really works with music that you don't know yet, otherwise it'll just keep you awake. Audiobooks on the other hand totally do the trick. It's basically the same as your mum reading you a story for bedtime. Only less motherly and more illegally-downloaded-audiobook-of-Harry-Potter-and-the-goblet-of-firely.
2. Work out. If you have sleeping problems, chances are there is something you're upset or sad about. You have to get rid of that anxiety. Start jogging, work out, go swimming. Just some sport that let's you fall to sleep immediately. You'll see the effect instantly, you lazy bum.
3. Drink sleeptea. Ok. This works only if you are still a little energetic in the evening when you actually wanna go to bed. If you have serious insomnia, forget tea. Green tea, for example, let's you calm down a little and makes it easier to leave your eyes closed at night. It also tastes good, if you do it right and don't buy soime cheap wal-mart sugary shitshake.
PS: Waking up at night isn't necessarily a sleeping "Problem". It's way more natural than you might think and if you frequently wake up in the middle of the night
use the time. Read a book, eat, be active. It's better than lie around passively and trying to figure out when you can sleep again.
Cheers,
JD