Attaining sleep when the drugs won't let SWIY

[Euphoric]

There are various threads in the forums about getting to sleep after particular substances. Please feel free to share such info here. But SWIM is really interested in sleep-aids and the safety of them, after a variety of drugs (though not necessarily in combos). For example: mushrooms, LSD, piperazines, coke, amph, etc.

So SWIM has successfully taken gravol (dimenhydrinate) to sleep after piperazines. SWIM is wondering if diphenhydramine and dimenhydrinate are safe to use after drug use (knowing of course that alcohol is a no on).

Most of the other threads suggest benzos. Why is this? Are they are more effective, or less dangerous? They're certainly not easy to come by.