What time do you wake up? Or do you even have a schedule?
I swear, years of getting slow moving children to ensure the wash up, change their underpants, put on the right clothes, have breakfast... Etc. has set my internal clock all kind of fucked up. It's almost 7 am. I've been awake since 3:30.
I generally wake up at 4:30am. I never used to do this, but after being forced by my ex's schedule to wake up at that time a few years ago my body got used to it. Now, even on a weekend, "sleeping in" just doesn't happen.
Just a few nights ago, after a late band practice, I didn't get to bed until a little after midnight. My body didn't care. I was wide awake at 4:30am.