Normally after a night of not being able to sleep, Derek was exhausted. Everything hurt, from his head to his pinky toe, and doing day-to-day activities felt as though he was being punished by somebody who had a knack for torture. But the key word here was usually.
That Monday morning Derek did not feel the effects of not sleeping during the night at all. In fact, not only did he not feel them. He was pretty sure that he was more energetic than the people who had gotten the recommended eight hours of sleep, the night before. From the moment that he had picked Emily up from the diner, and driven her to her apartment building, Derek had been thrumming with coiled energy.