Not much... I usually stay up until like 1 or 2, or some cases 3 or 4, and sleep til 7:30, wake up, make some coffee, then go back to sleep until 12 or 14
Must be fucking nice! If I'm luck I squeeze in 8 during the week and 10 on weekends. Those hours are at night though and the time I'm not sleeping is usually spent at school and/or doing school work.
I imagine being omnipresent, you don't get much rest at all, but can't you delegate or something? For instance, take all those loud-mouthed door-to-door religion salespeople and have them do something useful for a change instead of banging on the door going "YOU TOO CAN BE SAVED! YOU WILL BE FORGIVEN FOR ALL YOUR FILTHY SINS!"
You think you have it bad? Try having all of them living with you! My Me, it's God, our father this & Jehovah the Great that, talk about annoying. sheesh.
I get plenty of sleep. These last 2000 years or so, my Son has taken a large burden off my shoulders.