Afternoon naps

I can sleep on a plane for 40 minutes at a time. My first nap came
after dinner, the booze and two thirds of Annie Hall (she had just
called him over in the middle of the night to kill a spider). I was
probably snoring, but whatever. That was at about three and a half
hours into the flight. 40 minutes later I woke up and willed myself
back to sleep. With ear plugs and eye mask firmly in place, I tried, in
vain, to detect a pattern in the engines' rumblings. 40 minutes after
that, I woke again, certain that I wouldn't be able to sleep again.
That's okay, dinner time is a good time to be awake, and I have some
work to do.