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.
While many times it is a gift it is a curse if we suppose to be with someone. We go on a road trip? You barely close the door I am asleep. We ride buss I am asleep as soon as I sit down. Air plane I wake up 8 hours later. Hang out in bed I am gone.
I have to fight to stay awake but that is in vain. I will lose the fight five minutes later.