(The 3 a.m. concert you never bought tickets for.) It starts the same way every night. You’re finally asleep, when a tiny voice pierces the darkness: “Mrrrow?” You roll over. Silence. Then again: “MEEEEOW!” By the time you check the clock (3:07 a.m.), your cat’s either sprinting down the hallway, pawing your face, or performing a full monologue about their tragic lack of snacks. But what’s really behind the nightly meow marathon? And can it be stopped without losing your min