Using the ADD drug ritalin, or adderall to aid oneself in waking up in the morning. Usually taken an hour or so before the desired wake up time. So to be awake and cheery at 6:30a wake up groggy at 5:30a take a ritalin and pass out again. At 6:30 you wake up on your own feeling alert and rested
Friend: "Yo dude how the hell are you so awake and alert at this wee hour of the morning?"