Anyone have trouble sleeping?

I usually don't have any problems sleeping. There are some nights though that I just can't seem to get to sleep. Then, once I do get to sleep I keep waking up every few hours. Then there are nights when I fall asleep as soon as I go to bed. I guess it just depends on what kind of day I've had.

i nearly became an alcoholic cos i couldn't sleep, i used to take night caps to try and knock me out, and they kept getting bigge ran bigger until a bottle of whiskey would only last me 2 night!!!! My mum found the bottles hidden under my bed and i ended up at the doctors getting sleeping tablets, if it were not for my mum i would probably be dead with alcholol poisoning. That was 4 years ago, i have not been on a steady supply of sleeping pills for about 3 years but still have a bottle of them and if ever i am out of sync with my sleeping patterns i take two and i am back to my routine.