Give this a try; made by Roche Laboratories and goes under the name of Lexomil in France - not sure of name in U.S., but shouldn't be hard to find:
http://en.wikipedia.org/wiki/Bromazepam
This is a great little solution: very inexpensive and zero side-effects. It's sold as a tranquillizer, but clever people have discovered that it works even better for sleep. Very gentle, and when used for insomnia, there's no problem with regular use. At least for me....
As a total insomniac, I've been using it on and off for years and never have had the slightest side-effect. I've found that it works even better than so-called 'natural' (herbal) teas and pills, which most often leave me feeling totally wrecked the next day.
Once again, this is a quite gentle substance, basically just a tranquillizer: it's not like you're taking Prozac or one of the heavy anti-depressors.