ok so i havent read shit from here, but ill tell ya what i know. i always took 4mg, after about a half hour i started to feel tired, i would lay down and the next thing i knew it was 6:30 am. i do know that it wont knock you the fuck out, so dont fight it, if you feel tired, go to sleep, for me, if i did fight it the tired feeling would leave after about an hour, then where are you left? fucked...good luck!!!