Once you become a witness, or a developer on Steemit, sleep is replaced by caffeine :)
I feel bad for some of the top witnesses. I'm sure they have their house set up with a loud klaxon alarm if their witness ever goes offline, so that they'd be deafened out of bed at 4 AM to fix it.
RE: Someguy123 Witness Update #2 (2016-08-30)