I Have Trouble Sleeping. Both Falling Asleep And Saying Asleep.

I have trouble sleeping. Both falling asleep and saying asleep. I am also sensitive to drugs, and only take half doses. I've tried natural sleeping pills, but I think the valerian root has a reverse affect on me. My doctor tried to prescribe what she thought would work for me, but of course today the insurance co and pharmacies control our health care, so would not give me the drug. they want to give me temazepam, which is on the 10 most dangerous drugs list, @ 15 milligrams, but I need 7.5. Of course they won't cover it. (ins.) Medicines scare me anyway, would like natural, but nothing seems to work.