I have been tired enough that I have felt like I *could* lie down on the sidewalk and sleep (I mean, to the point where I’ve seriously contemplated it), but I haven’t ever done it. And I don’t think I could. Even exhausted, I think I would be jumpy about trying to sleep in a place like that.
Shoot. I’m bad about getting to sleep in my own bed (exhausted or not). I don’t think I’d be able to shut down enough to ever sleep on a random sidewalk.