napping
From a 1994 study of the effects of short-haul flying on airline pilots, (NASA Technical Memorandum 108856):
Several pilots (who were wired up to medical monitors and observed by technicians in the cockpit during flight) actually fell asleep for short periods while under direct observation. The technicians were amazed, since the pilots obviously knew they were being monitored, but fell asleep anyway.
There is a film of this somewhere. It appeared on a US television news magazine.
Pretty scary! It's not just long-haulers, the study shows, who have sleep problems caused by rostering.
Other effects noted were such things as the need to "spin down" even though feeling fatigue after flights, the consumption of alcohol and tobacco, and other factors causing shortened or disturbed sleep on "layovers."
I talked years ago with a DC-10 FE flying the Pacific. MANY\'S the time, he said, he awoke to find he was the pilot in command.
ZZZZZZZZZZZ!