That is a lot of melatonin..
In the sense of taking the low advertised doses - yes it does seem like a lot. However, the niacin serves as a fantastic barometer as to how much melatonin you need. Try not to think of it in terms of x amount of melatonin puts me to sleep. When taken with niacin, it is used up. See the little graphic at the beginning of the post. I am up to 100mg melatonin with 1000mg niacin 3x per day and I'm not a zombie.
Exactly my response—a serious melatonin dosing!