i've actually fallen asleep on concrete steps before. comfortable? no, not much, but i did sleep for about an hour.
after a two and a half hour practice and then a second session lasting an hour and a half in the heat I am that much tired
I was painting a room this weekend with a buddy. I wake up, on a 4 step step-ladder, leaning against the wall with my forehead. I still had the roller in my hand when I passed out. He fell asleep in a chair with the roller on his pants.