For proper sleep it is recommended to set these commands from the terminal. sudo pmset standby 0 sudo pmset autopoweroff 0 sudo pmset proximitywake 0 sudo pmset powernap 0 sudo pmset tcpkeepalive 0 ...
Created by RonR, extracted from https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=196778 NOTE: usb-boot as been updated to allow the use of direct USB booting ...