Melatonin
"I have extreme insomnia my Dr has prescribed every Medication for Insomnia either I had bad reactions to it or didn't help at all so yesterday My Dr prescribed OTC Melatonin I took one pill 3 mg I  had a very restful 5-6 hrs~I'm going to try 1/2 of a Pill to to get a full night sleep~I'll see how a 5 mg dose will work~but I was just happy that the 3mg gave me a restful few hrs. I'll report if the 1 1/2 Pills helps me stay asleep for 8 hrs. Right now I'm Thankful that I actually went to sleep and had a few good hrs of rest & sleep. No side effects !"