I’m not even traveling this summer, and yet I am jet-lagged. I had a bad time sleeping this week, until Friday night I was up till 2:00 and slept till 10:00 yesterday. I expected that it would take days to work back to my real time zone from this virtual Hawaii*. Instead, I was wiped out by sunset, went to bed at 9:30, and woke up before 4:00 a.m. I tried valiantly to go back to sleep till 5:00, and then got up.

Does my body think that summer is the season of international travel and so, one way or another, we’re going to have sleep disturbances?

*See also: https://www.xkcd.com/448/