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.
Weird, my neck pillow makes it easier to lay my head to either side.
It props it to the side, but my head drops forward anyway because I’m not leaned back far enough. Maybe I just have a heavy head?