Let him sleep

If a child is peacefully asleep and doesn't have to be somewhere at a certain time, let him sleep! If he stayed up late playing video games because it was the only time he could get a large block of uninterrupted access to the game, let him sleep as late as he needs to.

Going to sleep and waking up shouldn't be about the feeling of control the parent can gain from demanding and commanding.

from page 160 (or 178) of The Big Book of Unschooling
photo by Sandra Dodd