Even the officers were starting to look as worn-out as Conan felt. It was just like entrance exams all over again. This body needed more sleep than he'd had time for, dammit - the only person managing so much as eight hours was Kogoro himself, and even he wasn't getting it all at once.
This time, Kogoro was catching his catnap up against a half-open sliding door, which led out into the garden the victim had been found impaled in. (Conan was never going to look at a sundial the same way again.) He fought off a yawn as he finished his spiel, brandished Kogoro's arm at the killer, and watched the police dogpile the protesting young man.
Finally, Conan thought, wobbling to his feet. Now maybe he could get the stupid worksheets done, and even - please oh please - catch a nap before Kogoro dragged them both home. He scrubbed a hand over his face as he went looking for a quiet alcove in the house. Two murders in a single night, what the hell was in Beika's water this week? Maybe Ai had the right idea... locking himself in his room until the spree died off was looking more appealing with every late night.
-From Inconceivable Ch.3, Detective Conan