Funny thing is you can stay up all night, land back in the country of your choice, go to your crew room, hand in the paper work, and then spend another hour getting to your car. You might have been awake for up to thirty six hours. (We have all tried to sleep when a longhaul flight has been delayed, and failed miserably.)
Then you get into your car and drive home. Still I don't see the Daily Telegraph making a big thing about that. Now who would begrudge us a wee cat nap, if it means we might not run our cars down an embankment and on to a railway line?????