Melatonin works for me, but only in very small doses of .5 or .25mg. Anything higher gives very very strange dreams. Benydral (Diphenhydramine) works well, but I will only rotate it into my sleep routine once or twice a week. My RX for amitriptyline works too well as it will knock me out for 12 hrs, so again only once a week maybe. It is mostly used for depression and anxiety disorders and less so for insomnia. Never take it with alcohol!
ZMA sounds like a good option especially being OTC.
ZMA sounds like a good option especially being OTC.