There was a smile at that, already having finished her salad and her chips and working her way through the burger, "I know what sleep is Dean. Sam sleeps on the long hauls, sometimes. If he's not doing research, or playing solitaire while pretending to do research."
She shook her head, "But y'know, it's like eating, know what it is, but this is the first time I've done it and goddammit I just bit my lip again." The second time wasn't so bad, more of a glancing blow.