Not all light is meant to wake the world. Some is only meant to reassure the night. There is a quiet moment in the night that many people fear. They wake. The house is still. The world is dark. And the mind immediately reaches for explanations — something must be wrong. But for most of human history, waking in the night wasn’t a disorder. It was a rhythm. Before artificial lighting and rigid schedules, sleep was often split. People rested, woke briefly to tend fires, check su