What is melatonin good for?

It works for me. It's not an iron glove that smashes me unconscious. It's a subtle, but for me, effective, relaxant that contributes to the ability to sleep. Coupled with exercise/physical work during the day, and a quiet calm induced by sleep sound tracks from youtube (I like thunderstorms or rain sounds), I am sleeping better than I have since childhood.

My wife takes it before going to bed, and it helps her fall asleep.

Sleep

Sleep aid? Not sure if it works or not because if it does work it works in a minor way and I really can't tell if it helped me sleep or not.

It doesn't work for me.

Getting to sleep

Stimulating sleepiness