Maybe it was just the potion again, but Severus wasn't sure he had the first clue what she was talking about. "I'm ... not," he said slowly, blinking at her. Or at least he didn't think he was. He simply wasn't sure what, exactly, he didn't think he was doing. Or what Alecto thought he was doing. All he knew was that sleeping sounded like an exceptionally good idea just then, though he didn't think what she said had anything to do with sleeping.