We've been given a few lectures on sleep in my intern class. You're describing pretty classic "sleep inertia" in this - up and moving, but the brain is still fuzzy. It happens.

But, at least you got up. If someone started banging on my door, my dog would go nuts and I'd probably spaz until I noticed the lights outside. I'm sure the 911 operator could confirm if it was a real event, if I didn't see lights.

Welcome, and I look forward to the rest.