I can fall asleep almost anywhere. I routinely fall asleep in the break room at work. Once, I was helping a friend fix his car, and I fell asleep on his garage floor when he went inside to get water.
But in a hot metal tube tearing through the sky, with my neck all kinked? Get out of here, man.
Like a baby. The older I’ve gotten I’ve gained the ability to fall asleep virtually anywhere. My wife is super jealous that I’m able to be asleep for an entire 5-7 hour flight.