I'm not sure, but depending on how micro your dose was, it might have had a similar wakeful effect. Anecdotally and based on experiences of people I've spoken to, psilocybin tends to keep people awake. Some even say they couldn't possibly fall asleep for anywhere from 6 to 12 hours after taking a dose intended for psychedelic effects. Perhaps in micro doses it has the same effect but more mildly.