I've been looking into this; besides people calling me a 'noob' for not knowing how to do this (but not offering any suggestions as to how it' stone), I haven't

I've been looking into this; besides people calling me a 'noob' for not knowing how to do this (but not offering any suggestions as to how it' stone), I haven't seen any way to put the Pi in an official sleep mode, short of buying a Sleepy Pi hat that basically runs a lite Arduino as a hardware power management layer on top of the Pi.