Sandman Science

Sandman Science

Sandman Science is a place to fall asleep to the wonders of the universe. Every episode is a slow, gentle journey: a descent into the deep ocean, a drift through the solar system, a quiet walk through the natural world, narrated in a calm, unhurried voice over soft original music. No loud intros, no jarring cuts, no sudden sounds. Just long, wandering stories about real science, told slowly enough to let you drift off. Put it on, close your eyes, and let your mind wander out into the dark and quiet. Music and scripts are original to Sandman Science. Narration is an AI voice.

  1. 1d ago

    Falling Into a Black Hole, Slowly Explained for Sleep

    Tonight, fall slowly into a black hole: from the country vicar who imagined dark stars in 1783, the letter Schwarzschild sent from the front and the young Chandrasekhar working it out on a ship, out to the heart of our galaxy, where a star loops an invisible giant every sixteen years. Then down, gently, past the glowing disc, the ring where light travels in circles, the shadow and the slowing of time, across the edge and inside, and on to the far future, when even black holes fade. Narrated slowly over soft music, to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:39 The Dark Star3:13 A Letter From the Front4:58 The Young Man on the Ship6:25 The Collapse Nobody Believed8:02 How a Black Hole Is Born9:47 The Name11:09 How Small They Are12:29 The First One Found14:08 The Hidden Partner15:50 A Hundred Million in the Dark17:28 Leaving Home19:06 The Heart of the Galaxy20:35 The Stars That Gave It Away22:00 The Quiet Eater23:21 Choosing Where to Fall24:52 The Glowing Disc26:22 The Jets28:02 The Brightest Lights in the Universe29:42 Light That Bends31:17 The Ring of Light32:46 The Shadow34:08 Time Slows Down35:43 The Last Safe Orbit37:27 The Spinning Ones38:58 The Dragging of Space40:36 The Star Drawn Into a Thread42:22 The Tides43:54 What a Friend Would See45:39 The Edge47:25 Inside49:02 The Centre50:56 Bridges and White Holes52:36 The Surface That Remembers54:17 The Faint Glow56:05 A Black Hole in a Laboratory57:37 The Smallest Black Holes59:12 When Black Holes Meet1:00:45 The Runaway1:02:19 The Black Hole Era1:03:55 Even Black Holes Fade1:05:15 Rest1:07:20 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/027Zpa-KdLc Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the science here follows published, widely reported work: John Michell's dark stars (1783), Karl Schwarzschild's solution (1915-16), Subrahmanyan Chandrasekhar's limit (1930), Oppenheimer and Snyder (1939), John Wheeler, Cygnus X-1, Gaia BH1 and BH3 (ESA Gaia), the lone black hole OGLE-2011-BLG-0462 (Hubble), Sagittarius A star and the star S2 (Ghez, Genzel; Nobel Prize 2020), X-ray light echoes at the galactic centre, Messier 87's jet, quasar 3C 273 (Maarten Schmidt), the 1919 eclipse (Eddington), the photon sphere and black hole shadow (Event Horizon Telescope), gravitational time dilation and GPS, Roy Kerr's spinning black holes and Roger Penrose, Gravity Probe B, tidal disruption events (AT2019qiz), Jacob Bekenstein and Stephen Hawking, analogue black holes (Jeff Steinhauer, Technion), primordial black holes, GW231123 (LIGO, Virgo, KAGRA), the runaway black hole candidate (van Dokkum et al.) and the far future of the universe (Adams and Laughlin). Open questions are presented as open. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

  2. 3d ago

    The Wildest Weather in the Universe, Slowly Explained for Sleep

    Tonight, drift slowly outward through the wildest weather in the universe: the coldest place on Earth, diamond dust glittering in the air, a lake where lightning flashes almost every night, rain falling on the Sun, blue sunsets on Mars, hailstones made of ammonia on Jupiter, rain falling from Saturn's rings, raindrops like snowflakes on Titan, diamond rain deep inside Uranus and Neptune, the fastest winds in the solar system, clouds of rubies and sapphires and a planet where it snows sunscreen. Narrated slowly over soft music, to help you fall asleep, and ending where it began, with rain on the window. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:51 The Coldest Place on Earth3:29 Diamond Dust4:51 The Hottest Ground on Earth6:18 The Lightning That Never Stops7:49 The Wettest Place on Earth9:26 The Strongest Wind on Earth10:53 Lightning Above the Clouds12:40 Clouds That Shine at Midnight14:15 The Morning Glory15:50 The Weather on the Sun17:34 The Night the Sky Turned Red19:04 The Wind Between the Planets20:39 The Planet With Almost No Weather22:09 The Winds of Venus23:35 A Glory on Venus24:59 Metal Frost on Venus26:26 The Blue Sunset27:49 The Storm That Covered a World29:34 The Dust Devils31:11 Snow on Mars32:40 The Cyclones at the Pole34:22 Hailstones Made of Ammonia35:51 The Biggest Auroras37:19 Io's Collapsing Sky38:58 The Great White Storm40:37 The Rain From the Rings42:18 Raindrops Like Snowflakes44:02 The Dust Storms of Titan45:31 The Sideways Seasons47:13 Diamond Rain48:38 The Fastest Winds50:02 The Dark Spot That Vanished51:35 The Year Neptune's Clouds Vanished53:05 Blue Skies Over Pluto54:44 Snow on Pluto's Mountains56:30 Clouds of Rubies and Sapphires58:05 The Planet Where It Snows Sunscreen59:40 The Planet That Heats Up in Hours1:01:11 Clouds of Sand1:02:35 A Weather Report From a Brown Dwarf1:04:03 The Galaxy That Breathes Out1:05:33 Rest1:07:43 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/s2wgi3vW2bE Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the science here follows published, widely reported work: Vostok station and satellite surface temperatures in East Antarctica, diamond dust, the Lut Desert (MODIS land surface temperature), Catatumbo lightning (NASA LIS satellite data), Mawsynram rainfall, the Barrow Island gust (WMO), sprites and noctilucent clouds, the Morning Glory cloud, coronal rain, the Carrington Event, Ludwig Biermann and the solar wind, Mercury's sodium tail, Venus superrotation and the Venus Express glory, metal frost on Venus' mountains, Curiosity's blue sunset, the 2018 Mars dust storm and Opportunity, dust devils cleaning Spirit's panels, Martian snow (Phoenix and MRO), Juno at Jupiter's poles (cyclones, mushballs, auroras), Io's atmospheric collapse, Saturn's Great White Storm of 2010, ring rain (Cassini), Titan's rain and dust storms, Uranus' seasons, diamond rain (SLAC 2017), Neptune's winds and dark spots, Neptune's vanishing clouds (2019), Pluto's blue haze and methane snowcaps (New Horizons), WASP-121b, Kepler-13Ab (Hubble 2017), HD 80606 b, VHS 1256 b (JWST), Luhman 16 and the M82 superwind. Open questions are presented as open. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

  3. 6d ago

    The Strangest Sounds in the Universe, Slowly Explained for Sleep

    Tonight, drift slowly outward through the strangest sounds ever recorded: plants that click when they are thirsty, sand dunes that sing, a hum only some people can hear, a whale that sings in a key no other whale uses, the Bloop from the deep Pacific, the wind on Mars, the radio voices of Jupiter and Saturn, a black hole humming a B flat fifty-seven octaves down, and finally the sound of the beginning, still hissing in the static of an old television. Real recordings from NASA, NOAA and LIGO sit softly under the music, narrated slowly to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:34 The Quietest Room3:10 Your Ears Are Singing4:49 The Plants That Click6:21 The Elephants' Secret Rumble7:55 The Seventeen-Year Chorus9:47 The Bats' Hidden World11:31 The Whispering Gallery12:56 The Pyramid That Chirps14:11 The Ghost in the Machine15:44 The Singing Sand17:19 The Hum Some People Hear18:51 Booms From a Clear Sky20:38 The Sound of the Northern Lights22:05 The Whistlers23:39 The Dawn Chorus of Space25:07 The Hum of the Earth26:38 The Laser Lake28:02 The Singing Ice29:35 The Seals Under the Ice31:19 The Crackling Reef32:44 The Song That Spreads34:17 The Loneliest Whale36:01 The Clicks in the Deep37:43 The Sound Highway39:17 The Bloop40:39 The Upsweep42:20 Into the Silence of Space44:04 The First Sounds From Another World45:29 The Wind on Mars47:01 The Ringing Sun48:30 The Starquakes50:15 The Singing Comet51:54 Jupiter's Radio Storms53:28 The Voice of Saturn55:01 The Golden Record56:40 The Hum Beyond the Sun58:17 The Ticking Stars1:00:08 The Black Hole That Sings1:01:48 The Chirp1:03:27 The Sound of the Beginning1:05:12 The Static on the Screen1:09:14 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/F7QRh7XOls0 Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the science here follows published, widely reported work: John Cage and anechoic chambers, otoacoustic emissions (David Kemp), ultrasonic sounds from stressed plants (Tel Aviv University, Cell 2023), periodical cicadas, bat echolocation (Donald Griffin), elephant infrasound (Katy Payne), the St Paul's Whispering Gallery (Lord Rayleigh), the Chichén Itzá chirped echo, Vic Tandy's 19 Hz 'ghost', booming dunes, the Taos Hum, skyquakes and mistpouffers, auroral sounds (Aalto University), whistlers and chorus (Van Allen Probes), the Earth's hum, the Ross Ice Shelf song, Weddell seal song, snapping shrimp, humpback song transmission, the 52-hertz whale, sperm whale codas (Project CETI), the SOFAR channel, NOAA's Bloop, Upsweep and Julia, Venera 13 and 14, Perseverance's microphones, helioseismology (SOHO), Kepler asteroseismology, Rosetta at comet 67P, Jupiter's radio bursts, Cassini at Saturn, the Voyager Golden Record and interstellar plasma waves, pulsars (Jocelyn Bell Burnell), the Perseus cluster B flat (Chandra), GW150914 (LIGO), baryon acoustic oscillations and the cosmic microwave background (Penzias and Wilson). Open questions are presented as open. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and narration are original to Sandman Science; the real recordings used are credited below. Sound creditsThe Bloop, the Upsweep and Julia: NOAA Pacific Marine Environmental Laboratory (PMEL) Acoustics ProgramHumpback whale song: NOAA Northeast Fisheries Science Center, Passive Acoustics Branch (Meno-song-NOAA-PAGroup-13)Earthsong (Van Allen Probes chorus): Science@NASA and NASA's Goddard Space Flight CenterMars wind: NASA/JPL-Caltech/LANL/CNES/CNRS/ISAE-SupaeroSound of the Sun: A. Kosovichev, Stanford Experimental Physics Lab, from SOHO/MDI data (NASA)Juno at Ganymede: NASA/JPL-Caltech/SwRI/Univ of IowaSaturn radio emissions: NASA/JPL/University of IowaVoyager 1 interstellar plasma: NASA/JPL-Caltech/University of IowaPerseus black hole: X-ray: NASA/CXC/Univ. of Cambridge/C. Reynolds et al.; Sonification: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)Black hole merger GW150914: LIGO Scientific Collaboration / Gravitational Wave Open Science Center (CC BY 4.0)Sound of the Big Bang: (c) John G. Cramer, University of WashingtonSounds were softened, filtered and levelled for sleep. No endorsement by any of these organisations is implied.

  4. Oct 14

    Strange Life, Slowly Explained for Sleep

    Tonight, drift slowly down through the strangest life on Earth: a forest that is one single tree, the water bear that survived open space, the frog that freezes solid every winter, the octopus that thinks with its arms, the jellyfish that grows young again, a shark that may be four hundred years old, the glowing creatures of the deep, and finally the quiet life living inside the rock beneath the sea floor, narrated softly over calm music to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:49 The Forest That Is One Tree3:31 The Oldest Tree4:55 The Largest Living Thing6:27 The Brainless Problem-Solver8:12 The Water Bear9:58 The Frog That Freezes11:44 The Sloth's Garden13:21 The Bird That Copies Everything14:55 The Animal Nobody Believed16:28 The Animal That Does Not Grow Old18:10 The Longest Journey19:44 The Journey of Four Generations21:17 The Animal That Grows Back22:53 The Fish That Waits for Rain24:38 The Eel That Is Not an Eel26:15 The Sisters Without Brothers27:57 The Animal That Sees More Colours29:32 The Mind in the Arms31:02 The Shape-Shifter32:36 The Turtle's Map34:06 The Jellyfish That Grows Young35:50 The Heaviest Bony Fish37:30 The Largest Animal That Has Ever Lived39:03 The Whale With Old Harpoons40:31 The Oldest Shark41:53 Into the Twilight43:29 The Sea That Glows44:55 The Longest Animal46:37 The Gentle Vampire48:21 The Fish With a See-Through Head49:54 The Giant Squid51:36 The Fish That Carries a Lantern53:12 The Whale Fall54:59 Life Without the Sun56:44 The Snail With Iron Armour58:10 The Deepest Fish59:50 The Giant Single Cells1:01:34 The Microbe That Lives Alone1:03:27 The Sleepers Beneath the Sea1:05:12 The Hidden Half1:09:21 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/-tDS-Kji6ho Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the natural history here follows published, widely reported research: Pando and the Malheur honey fungus, the Methuselah bristlecone pine, Physarum slime-mould maze and Tokyo-network experiments, tardigrades in space (FOTON-M3) and revived after 30 years, freeze-tolerant Alaskan wood frogs, naked mole-rat longevity and anoxia tolerance, Arctic tern tracking, monarch migration, axolotl regeneration, the South American lungfish genome, Electrophorus voltai, bdelloid rotifers revived from permafrost, mantis shrimp vision, octopus neuroscience, the mimic octopus, Turritopsis dohrnii, the Azores ocean sunfish, blue whale heart rates, bowhead and Greenland shark age estimates, Monterey Bay bioluminescence surveys, the Ningaloo giant siphonophore, the vampire squid, the barreleye, the 2012 giant squid footage, Osedax, the 1977 Galapagos vents, the scaly-foot snail, the 8,336 m snailfish, Mariana Trench xenophyophores, Desulforudis audaxviator, 100-million-year-old seafloor microbes and the Deep Carbon Observatory. Estimates are presented as estimates throughout. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

  5. Oct 12

    Space Mysteries, Slowly Explained for Sleep

    Tonight, drift outward through the mysteries of space that nobody can yet explain - the Sun's crown that is hotter than the Sun, the hexagon on Saturn, the Wow! signal, the particle from nowhere, dark matter, dark energy, the slow hum of the universe, and finally the oldest question of all - narrated softly over calm music to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:45 The Sun's Hot Crown3:25 The Quiet Sun5:02 The Faint Young Sun6:38 The Missing Sunlight Particles8:23 Where the Oceans Came From9:52 The Planet That Spins Backwards11:26 The Methane on Mars13:04 Where the Water Went14:40 The Fuzzy Heart of Jupiter16:09 The Shrinking Storm17:41 The Hexagon19:16 The Cold Heart of Uranus21:04 The Edge of the Belt22:32 Planet Nine24:09 The Cloud Nobody Has Seen25:39 The Mystery That Was Solved27:22 The Wow! Signal29:14 Where Is Everybody30:59 The Giant Around the Tiny Star32:42 The Bubbles Above the Galaxy34:21 Inside a Black Hole36:15 The Flashes From Far Away38:19 The Invisible Matter40:00 The Galaxy With Almost None41:40 The Strange Circles43:05 The Great Attractor44:32 The Particle From Nowhere46:19 The Brightest Flash Ever Seen48:10 The Hum of the Universe50:19 The Glowing Blobs51:48 The Missing Lithium53:15 The Too-Smooth Universe54:50 The Cold Spot56:35 The Two Speeds of the Universe58:29 The Force Pushing Everything Apart1:00:13 The Weakest Force1:01:35 Why There Is Anything at All1:03:10 Before the Beginning1:06:51 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/AOrlB1dFVI8 Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the astronomy here follows published, widely reported results - the coronal heating problem and the Parker Solar Probe, the Maunder Minimum, the faint young Sun paradox, the solar neutrino problem and SNO, Mars methane (Curiosity and the Trace Gas Orbiter) and InSight, Juno at Jupiter, Cassini at Saturn, Planet Nine, the Pioneer anomaly, the Wow! signal, the Fermi bubbles, fast radio bursts, dark matter, odd radio circles, the Oh-My-God and Amaterasu particles, GRB 221009A, the NANOGrav gravitational-wave background, the lithium problem, the CMB Cold Spot, the Hubble tension and DESI. Open questions are presented as open throughout. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

  6. Oct 10

    Strange Worlds, Slowly Explained for Sleep

    Tonight, drift outward through the strangest things we have found in space - a deep blue planet where it may rain glass, two suns setting one after the other, iron rain, a star that has turned to crystal, the largest star and the largest black hole, the little red dots at the beginning of time, and finally the biggest empty place there is - narrated softly over calm music to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:51 How We Find Them3:55 The Visitors From Other Stars5:59 The First Worlds Ever Found7:53 The Planet That Started Everything9:52 Hot Ice11:19 Seven Small Worlds13:10 The Blue Planet14:58 The Lava World16:56 The Darkest Planet18:33 Two Suns20:16 Iron Rain21:38 Hotter Than a Star23:03 The Planet on a Comet's Path24:33 The Rings26:25 The Planet That Should Not Be There27:48 The Lightest Planet28:56 The Worlds With No Star30:32 The Star That Swallowed a Planet32:05 The Oldest Star33:44 The Crystal Star35:39 The Star Nobody Can Explain37:12 The Star That Dims39:01 The Star That Nearly Exploded41:05 The Biggest Stars43:27 The Strongest Magnet45:13 The Fastest Star46:47 The Brightest Explosion Ever Seen48:29 The Ghost Particles50:04 The Star That Would Not Die51:44 The Explosion We Saw Again53:50 The Perfect Ring55:19 The Green Ghost57:06 The Biggest Black Hole59:06 The Little Red Dots1:01:02 The Largest Things1:02:09 The Largest Empty Place1:07:18 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/q1oG-cyWips Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the astronomy here follows published, widely reported results - exoplanet discoveries from Kepler, TESS, Hubble, Spitzer, the Very Large Telescope and the James Webb Space Telescope; the pulsar planets of PSR B1257+12 and 51 Pegasi b; white-dwarf crystallisation; Eta Carinae's Great Eruption; SN 1006, SN 1987A, iPTF14hls and SN Refsdal; Hanny's Voorwerp and Hoag's Object; TON 618; JWST's little red dots; and the proposed KBC Void. Contested or uncertain results are hedged as such throughout. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

    Strange Worlds, Slowly Explained for Sleep

  7. Oct 8

    Alien Moons, Slowly Explained for Sleep

    Tonight, drift outward from Mars to Pluto and stop at the moons along the way - Phobos slowly falling, Io's lava lake, the ocean under Europa's ice, Titan's methane rain, Enceladus snowing into space, the tallest cliff in the solar system, and Pluto and Charon facing each other forever - narrated softly over calm music to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin2:09 How a Planet Gets a Moon3:56 The One We Know5:42 Phobos and Deimos8:19 Jupiter's Family10:11 Io12:26 The Lava Lake13:50 Europa16:05 Ganymede18:14 Callisto20:22 The Clockwork22:10 How Long a Day Is24:00 Saturn's Crowd25:15 Titan27:56 Enceladus30:16 The Small Strange Ones32:52 The Moons Named After Plays34:46 The Quiet Family36:31 Miranda38:43 Triton40:50 The Smallest Find42:22 The Pair That Face Each Other44:32 How the Light Fades46:36 The Moons of Small Things48:18 The Visitors49:48 Moons We Have Not Met51:12 Rest53:11 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/N9lMP5dDWXE Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the planetary science here follows standard, widely agreed sources - moon formation, tidal locking and tidal heating, the Laplace resonance, the subsurface oceans of Europa, Ganymede and Enceladus, Titan's methane cycle, Voyager 2's flybys of Uranus and Neptune, New Horizons at Pluto, and the DART impact - drawn from NASA and ESA mission science. Moon counts and figures are hedged throughout. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

    Alien Moons, Slowly Explained for Sleep

  8. Oct 6

    The Rainforest, Slowly Explained for Sleep

    Tonight, stand still under the canopy through one whole rainforest night - the dusk chorus, the world in a single tree, the rain that the forest makes itself, the glowing wood on the floor, and the dawn chorus before any light - narrated softly over calm music to help you fall asleep. Dim the lights, lower the volume, and let yourself drift. Chapters0:00 Where We Begin1:41 The Light Goes3:59 The Tallest Trees6:07 Why It Is Always Like This8:07 How Much Is Here10:28 The Dusk Chorus12:43 The Fig and the Wasp15:23 The Insects17:26 One Tree19:24 The Tree That Keeps Ants21:41 The Understory24:29 When a Giant Falls26:50 The Floor28:48 What Is Under the Floor31:07 The Ones That Eat the Forest33:19 The Leafcutters35:09 The Dust From Africa37:10 The Ones That Move38:56 The Quiet Cats41:32 The Night Shift43:14 The Seeds45:37 The Ones That Eat Earth47:53 The Flowers That Open at Night49:40 The Slowest Animal51:36 Seeing in the Dark53:58 The Frogs56:02 Where the Poison Comes From58:12 The Bird That Turns Itself Off1:00:30 The Rain1:02:47 The Frog That Lives With a Spider1:04:48 After the Rain1:06:38 The Forest Under Water1:09:03 The Living Lights1:11:07 The Quietest Hour1:12:30 The Loudest Voice in the Forest1:14:36 The Dawn Chorus1:16:28 The Butterfly That Has No Blue1:18:34 Rest1:20:50 Ambient Tail (Music Only) About Sandman ScienceSlow, gentle journeys through the universe and the natural world, narrated calmly over soft original music, made for falling asleep and quiet minds. New journeys added regularly.Watch the video version on YouTube: https://youtu.be/oKZtqJWHpQI Best experienced at a low volume, as you fall asleep. Sources for the science in this episode: the ecology here follows standard, widely agreed science - forest layers and light, epiphytes and bromeliad pools, nutrient cycling and mycorrhizal networks, leafcutter and army ants, fig-wasp mutualism, transpiration and moisture recycling, bioluminescent fungi, and the animals described - drawn from standard tropical ecology references. Figures are kept conservative and approximate. These videos are for relaxation and sleep. They are not medical advice or a treatment for insomnia or any health condition. Music and scripts are original to Sandman Science. Narration is an AI voice.

    The Rainforest, Slowly Explained for Sleep
See All (15)

About

Sandman Science is a place to fall asleep to the wonders of the universe. Every episode is a slow, gentle journey: a descent into the deep ocean, a drift through the solar system, a quiet walk through the natural world, narrated in a calm, unhurried voice over soft original music. No loud intros, no jarring cuts, no sudden sounds. Just long, wandering stories about real science, told slowly enough to let you drift off. Put it on, close your eyes, and let your mind wander out into the dark and quiet. Music and scripts are original to Sandman Science. Narration is an AI voice.

Information

  • Creator
    Sandman Science
  • Years Active
    2026
  • Episodes
    15
  • Rating
    Clean
  • Copyright
    © 2026 Klaasvaak Media
  • Show Website
    Sandman Science