pixar style.A cozy bedroom at night. A charming animated human character sleeps peacefully under a blanket. Camera slowly zooms through the forehead into a magical glowing brain city full of sparkling neurons firing like busy streets. Eyes move rapidly under eyelids, heart glows with rhythmic pulses. Cinematic lighting, emotional wonder, premium Pixar-style realism. Voiceover: “While you sleep, your brain keeps working. During dreams, it can become more active than when you are awake.”