I bought a packet of 20 nytol sleeping pills today. The most I've taken together is two and the experience was sort of trippy followed by inevitable sleep. (50mg tablets of diphenhydramine).
I've also done some research into what can happen with a sleeping-pill overdose and I don't like the idea of taking 20 and waking up with liver and or kidney problems in a hospital bed along with compulsory psychiatric evaluation. How many would definitely do the trick? Preferably, i'd like to fall into a deep sleep and never wake up (not a coma).