Welcome to SleepWise!

Settle in for a gentle bedtime story about sleep, healing, and the remarkable work of the human immune system. While the body appears quiet beneath the blankets, its defenses are not resting. Throughout the night, immune cells move, chemical signals travel, and small, precise battles unfold in the dark on our behalf. Tonight, we explore the ancient belief that rest is the best medicine, from the observations of Hippocrates and early folk healers to the modern science of sleep and immunity. We w

Drift into deep time with this calming bedtime story about the five great mass extinctions that reshaped life on Earth. Tonight, we journey across hundreds of millions of years, from the warm shallow seas of the Ordovician to the final days of the dinosaurs. Along the way, we explore the frozen oceans of the first great extinction, the mysterious collapse of Devonian reefs, the volcanic catastrophe of the Great Dying, the breakup of Pangaea, and the asteroid impact that ended the Cretaceous wor

Tonight, settle into a calming bedtime story about freshwater, ancient civilizations, and the quiet disputes that emerge when several nations depend upon the same river. We begin beside the earliest river valleys, where the Nile, the Tigris and Euphrates, the Indus, and the Yellow River allowed settlements to become cities. From there, we follow water into the modern age of borders, dams, irrigation systems, treaties, and reservoirs—discovering why control of an upstream river can give one coun

Somewhere in a hospital tonight, a person is being asked to count backwards from ten. They will make it, perhaps, to eight. Between eight and seven, something quietly extraordinary will happen. The self they have carried through every waking moment of their life will simply fold away. Not into dream, not into memory, but into an absence that has no inside. And then, sometime later, without any effort of their own, they will return. This is one of the strangest and gentlest tricks the human body

Tonight, drift beneath the waves and follow one of humanity's quietest wonders — the long, stubborn effort to lay a single thread of connection across the floor of the ocean. This is the true story of how the world was first wired together: a tale of storms and patience, of fortunes swallowed by the sea, and of a cable resting in darkness on the seabed while the world sleeps above it. From a time when a message crossed the Atlantic only as fast as a sailing ship, we trace the whole journey — th

Somewhere in every night, in every corner of the world, someone is asking for one more story before they close their eyes. It’s the oldest request we have — older than writing, older than paper, older than the very idea of a book. Long before there were pages to turn, there were voices in the dark, and there were children asking those voices to keep going. Tonight’s SleepWise is a slow, quiet story about that ancient impulse, and about why the human mind reaches for narrative at exactly the mome