Do you know what sucks? When you go to bed an hour later than normal but can't fall asleep due to some stress around work and buying a home.
So then, you pick up your book because you usually fall asleep a page or two in, but then your book gets really good, and the next time you look at the clock it's nearly three hours past your bedtime.
Then you realize you're hungry and get up to scarf down a bowl of cereal and really get into the show your husband is watching on TV.
And then your daughter wakes up because it's time to nurse and you're still awake for it because you're up so far past your bedtime.
Add in a very busy day at work, and a daughter who skipped her usual post-work nap, and there you have it. That's why I'm sleepy.