Melatonin
"I basically love trying everything... And this is actually a really good supplement, I tried 2mg tabs but I've learnt my body is quite strong against drugs... So whilst I was abroad (need a prescription in the uk) I got 5mg tabs and wow! I'm out with in an hour. If you find you're taking it with no effect, keep taking it for 2 weeks then stop for 3-4 days then start the cycle again, I found this the best way to maximise its effects. If it doesn't hit just take 2 but I can't recommend more as I haven't tried that. DO NOT EVER TAKE SLEEPING PILLS! Worse than lsd."