You're probably the sort of person who can fall asleep standing up. You've most definitely had a little snooze at your desk, on the train on a fellow commuter's shoulder, in an IMAX screen and probably during the Apocalypse. People are astounded at your ability to simply fall asleep anywhere, regardless of noise or your physical position. It isn't about comfort with you, it's simply because you're so tired that a rock could do the trick.
