He'll crash later, when it's safe to. Might need to call out of school sick, though he'd like to avoid that - Mitsuru might understand. He'll work extra-hard after to make up for it.

...The silence is a little awkward. Maybe he should try to fill it. "...Do you not need to sleep?"

They're being hunted by haunted animals, he's friends with a robot, he's willing to believe anything.