umm im not sure about sleep aid...but listen i dont really have much experiecne on this subject either i used dramamine and i took 19 and i about got cought because i went into my moms room thinking it was the kitchen looking for the milk..waking her up asking where the milk was....so yeah....and the twitching does happen but if the sleep aids are like dramamine or contain the same shit then you will be fine taking 12 have fun....