I have ptsd so I don't want to close my eyes sometimes. I like to think it is controlled, but I am beginning to realize each day more and more how it is not.
My mom has insomnia, and she has tried everything. The only thing that works is Ambien. But it makes her do some crazy midnight eating (I guess not so much anymore).
If it is a problem of your mind running and you cannot shut it off a therapist told me to do a brain dump. Which basically is take a notebook and write down every thought that pops into your head. Don't over think it. Just get all that **** out. Doesn't matter what it is or how stupid it sounds... Write it down and eventually your mind will be empty. It worked for the times I did it. And it was awesome to read it later (next day-weeks-months) just date it.
Or another thing I sometimes do is listen to soft electronic music or nature cd's. Robert Miles (23 am or dreamland) were the 2 I listened to most. But I can listen to anything now and can fall asleep to it. Try classical also.
Good luck, insomnia sucks.