It has zero effect on me. Iv had insomnia most of my life pretty severely. So bad that I often don't sleep at all for up to a week at times. Iv never found anything that works. My mind will not shit down.
I had forgotten about melatonin. Ran out of ambien and never called in the refills recently. Had a couple of bottles of TN's sleep caps and started popping 2 of them and holy shit out like a light and some serious deep sleep and dreams..WOW.
I also take some Mg and zinc too.