I don't sleep well at all. This is partially due to a childhood I won't go into but basically my sleep schedule when left alone (in the summer mostly) is 2-4 hour periods throughout the day. One at like 4 am another around 2 in the afternoon and then a random one that doesn't have a normal time.
As for what I do when I have to sleep during the school year, I've been told stay away from electronic devices for at least 2 hours before you go to bed. I tried it but then I was like "Man then what am I supposed to do?" One night I spent two hours cleaning before bed and I slept pretty well.
Temp affects me quite a bit too. For me though it has to be warm enough for me to go to sleep. I always have a blanket too but when it's cold in my room and I toss and turn and lose the blanket, I wake up almost instantly. Any kind of noise usually wakes me up too. It sucked when my uncle was living here because he would open the door (which I'd hear) he was a big guy so when he stepped on my floor I'd hear it and then he'd just get on my computer and the powering up/typing would wake me up. I'd try to go back to sleep thinking "It's just him" but just as I fell asleep again, he'd type something or click something and I'd wake up again. He did this when I had school too. It was terrible.
Things that have helped me sleep.
-Light music though sometimes this causes me to want to drum
-no electronics for 2 hours
-lay in bed for a while in the dark with my eyes closed while I think
-Caffeine limit (probably a major cause of my insomnia)
Again though, sleep and I don't go together well so I'm not the best to listen to.
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