When Kira, Setsuna, and Sara weren't home, Katou slept. Though at this point, he was pretty sure he always kept his face, the last thing he wanted was them to show up to see some indistinguishable blob with a metal arm. On top of that, he really didn't want them to worry about him and his dreams.

At the moment, he was in one of the back rooms, panting or moaning or gasping in his sleep, tossing and turning, and sweating up a storm.