Daylight Savings + a cold that means I don't sleep well. At about 1:15 this morning, my cold went from my head to my lungs, and I started coughing a lot, enough to wake me up. So I took some cough medicine, and went back to bed, but didn't sleep for a while. And then the alarm went off.
As someone who watches bike races, I've learned that riders improve over long distances as they get older, into their late 20s, and then can stay quite good at those distances into their mid to late 30s. But they may lose some sprinting speed in that time. And they may get better at mountains. It's like they develop a different sort of stamina.
I bring this up because even with almost no sleep, I got up when the alarm went off, got to school, met with a student, held class, wrote an exam, and so forth, pretty much as usual except that I didn't feel great. It's like I have that sort of longer stamina. When I was younger, I could pull an all nighter, and felt like I was effective until late. But then I was crap the next day. Now, if I'm up all night, I can carry on the next day pretty well, better than I used to. I still feel lousy, but I can do what needs to be done.
At any rate, it's supposed to hit the 50s today in the Northwoods, so I hope I get outside a bit. If nothing else, that will make me feel better!