I attempted to use melatonin on myself in a pseudo-study and wrote about it here:
Following gwern's post about Melatonin, I did a self-trial of melatonin to see if it improved my sleep.
Objective: To see whether I (myself only) should take melatonin regularly or not. Therefore: Have a clinically significant decrease in sleep time or increase in daytime awakeness. Clinically significant=statistically different & meaningful (i.e. 1 minute difference is not worth the effort, for example)
Note that at baseline, I never have trouble falling asleep, and I never have trouble staying asleep. Melatonin is theoretically advantageous in inducing... (read more)