Folks beware of Melatonin and its potential side effects. It's like anything else...not totally benign just because it is over the counter and some of the side effects are quite nasty.found 5mg Melatonin
Google it and educate yourself just so you are forewarned.
I took one teeny tiny dose (the 0.5 mcg...not mg) and within 15 minutes I was bouncing off the walls dizzy and it last for about 3 hours after waking up the next morning. When I get dizzy I also get nauseated which I simply can't handle well.
Vertigo is a well known stated side effect...and there are some others that are not very pleasant either.
Now I know that most people don't seem to have a problem with it and that's wonderful....but it does come with some nasty side effects that can happen to a few people and you never know if you are going to be one of them or not. The other one that caught my eye...affecting a person's libido and not in the way most of us would want it.