This is what happens when your child trips and falls in the backyard while playing, cuts their lip in three places, bleeds all over the place and gets taken to the Dr.s office. They fall asleep in the car on the way home and don't even wake up when you carry them inside and lay them on the couch.
If you know Abby, you know that this is highly unusual behavior as she almost NEVER falls asleep anywhere but her bed, unless it's a really long road trip, and then she wakes up as soon as the car stops moving. I guess all that screaming and freaking out about the blood tired her out. Sleep makes for faster healing, right?