i used to be an insomnia professional. the most important thing i learned is not to worry about it. you can live on less sleep, but you can't sleep well when you're worrying.

before you go to bed, do you do something to try and fully take your mind off work? something that really involves your mind, even if it's lame? read a book - i find that is better than a magazine, because narrative is more involving than short articles. or watch something cheesy like reruns of wonder woman till you find that you are not thinking "should i change that upsell in the member area?"

and keep a pad of paper and a pen with you by your bed. if you suddenly think "i hope i remember to contact that host and change our billing", write it down. always be sure to read what you've written the next day - if you don't, writing it has no real value.

if i wake up too soon, i read or play a video game till i'm relaxed, then i go back to sleep. not a video game like vice city, but something more like tetris.

and last was something my doctor suggested. if you find you feel nervous, jump on the treadmill or pace. don't run - just do a rather fast walk for a while. burn off your extra energy without making it a workout. working out will keep you from sleeping, so take it easy.

good luck!