I can't even blame Daylight Savings Time.
Friday night I was out late at the PSFS meeting. Saturday afternoon we were at an anniversary party, and went straight from there to another event. We ended up covering for staff emergencies and were working past closing time. By the time we got into bed it was about 4:30 a.m. It wouldn't have helped if it had still been 3:30. I'm used to winding down around midnight.
So, having used up all of my energy, and having no reserves since I've been sick for too long, I spent almost all of today asleep.
Writing with intent should resume tomorrow.