I don't know a whole lot about benzos but I am prescribed Temazepam for insomnia and I only take it periodically if I really need to sleep(try to take it less than once a week) and last New Year's Eve I took a Temazepam 48 hours before NYE and there was apparently strong LSD given to me as a gift as well as mdma and all night I felt basically nothing. I was the only one one who felt nothing at the party. I had just started taking Temazepam and to this day it's the only explanation that makes any sense.