I have no choice in the matter. My kids get me up to make sure they get off to school, then I look after my 5 yr old till he goes to school in the afternoon. Then I workout or do house chores etc. till they get home around 3:30PM. I sometimes toss a 1 hr nap into the fray in the afternnon to catch up a little. I am then off to work myself at 5PM-2:30AM asleep around 3:30 - 4AM and up around 8AM, to another joyous day. Getting to spend all that time in the mornigs with my kids has been worth the sleep deprivation, although my wife says my hair is turning grey at an alarming rate these days. I think I've earned it.