the great thing about melatonin is that its impossible to OD on. from what ive read, people have been given over 1000x the normal doses with no toxicity reported. i usually take 4+ of them along with a valerian if im bored at night and dont want to smoke. gives you a pretty nice buzz. the last time i took melatonin recreationally, i took 7 at around 2 in the morning. at 3 i walked out of my friends house (with his consent), walked a few blocks up, pissed on a BMW, and then came home with a bagel. we still have no idea where the bagel came from haha.