I'm not sure why he does it.
The thing about parenting a nine-month old is that you can't take their word for anything at all. They could look perfectly fine and be hiding some horrible disease. I watch House. I've seen how a little tic here or an out of place cry there could be hiding an allergy to air or somesuch.
So when he wakes up at 11:15, 3:30, 6 and 8... well, it's confusing. He used to sleep. I remember the days, sweet and carefree and smelling faintly of milk and honey. (Not that he can eat either yet.)
It makes me sleepy and incoherent. And irritable. And prone to not blogging.