[throwaway87483]

Not the "entire" community, the places I spent time on years ago were focused exclusively on improved sleep efficiency, if there is such a thing.

I used piracetam for a few months and functioned well on six hours of sleep per day (the norm is 1.5x that). Remembered dreams pretty well too (I very rarely remember them before or after that period).

It also greatly reduced the effects of alcohol intoxication, but that was more of a downside (strip ethanol of its effects on the mind and you get pure poison).

The were no other noticeable effects, and I stopped taking it because dosages were measured in hundreds of milligrams and I was worried about load on the kidneys.