From the Sleepy Time Historian

You fall asleep before the ending.This is how the stories finish.

Two books from the channel you already sleep to — the twelve biggest stories written out in full, and twelve more that were never episodes at all — and a reading library of 65 full episode transcripts. Yours to read at your own pace, in the dark, at whatever hour you like.

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  • 173,000 subscribers
  • 4.5★ on Spotify (205 ratings)
  • PDF + EPUB · DRM-free
  • Download the moment you pay
The 12 Warnings They Left Behind — cover12 Mysteries of Our Prehistory — cover

Choose your set

Every set is the same files — PDF + EPUB · DRM-free — downloaded the moment you pay. What changes is how much of the library comes with them.

The 12 Warnings They Left Behind — cover

The 12 Warnings They Left Behind

$14.97

  • Twelve chapters that were never episodes
  • From the Sumerian King List to Plato's Atlantis
  • A source registry for every claim
12 Mysteries of Our Prehistory — cover

12 Mysteries of Our Prehistory

$14.97

  • The channel's twelve biggest stories, in full
  • Lost fur, RH-negative blood, the Ice Age flood
  • 969 pages and 12 painted plates
12 Mysteries of Our Prehistory — coverThe 12 Warnings They Left Behind — cover

Both Books

$24.97Save $4.97

$29.94 bought one at a time

  • Both books, PDF + EPUB
  • 24 stories: 12 new, 12 from the channel
  • From a shattered flood tablet to Ice Age footprints

Best value

Volume III — Lost Civilizations & MysteriesVolume I — Human Origins & Evolution12 Mysteries of Our Prehistory — coverThe 12 Warnings They Left Behind — cover

The Complete Library

$39.97Save $4.97

Both books at the bundle price, plus 65 episode transcripts

  • Both books, PDF + EPUB
  • Full transcripts of 65 episodes, word for word
  • Five volumes, from human origins to collapsed civilizations
  • Curator's Cabinet + Collector's Companion

Digital download. By purchasing you agree to immediate delivery and our terms.

173,000subscribers
404episodes
19 millionviews
65transcripts in the library

What's inside

One is the channel, written out at full length. The other is twelve chapters that have never been an episode. Both are set to be read in a dark room.

The 12 Warnings They Left Behind — cover

New writing · not on the channel

The 12 Warnings They Left Behind

Twelve ancient texts, from Sumer to Plato, that all describe the end of a world — read closely enough to show where their stories really do resemble each other, and exactly where that resemblance stops.

  • Twelve surviving texts, grouped by the families they really belong to.
  • What each text says, kept apart from what the evidence supports.
  • A full source registry in the back, so every claim can be checked.

140 pages · 24,322 words · 12 platesPDF + EPUB · DRM-free · $14.97 on its own

See all twelve chapters
  1. Eight Kings Ruled for 241,200 Years — Then One Sentence Ends the World
  2. The Oldest Flood Story We Have Survives on a Shattered Tablet, and Part of It Is Simply Gone
  3. In the Oldest Version, the Gods Drowned Humanity for Being Too Loud
  4. A Babylonian Scribe Folded a Flood Survivor Into a Poem About Refusing to Die
  5. Genesis Keeps the Boat, the Birds and the Warning — and Quietly Changes Who Sent the Water
  6. Four Strange Verses in Genesis Grew Into a Whole Book About Angels Who Taught Us Too Much
  7. The Dead Sea Scrolls Preserve a Flood Story Told From Inside the Camp of the Condemned
  8. Someone Rewrote Genesis Around a 364-Day Calendar, and Believed Everything Depended on It
  9. A Persian Text Describes the End of the World as a Winter, and the Refuge as an Enclosure
  10. India's Oldest Flood Story Has No Crowd and No Ark — Just One Man and a Fish That Won't Stop Growing
  11. The Popol Vuh Says We Were the Fourth Attempt, and Describes the Three Failures
  12. Most Classicists Think Plato Invented Atlantis. Why He Invented It Is Stranger
Choose your set
12 Mysteries of Our Prehistory — cover

The channel's twelve biggest stories

12 Mysteries of Our Prehistory

The near-extinction that cut us to 1,280 people, the flood that ended the Ice Age, the footprints in New Mexico that should not exist, and nine more questions where the evidence runs out and the arguing starts.

  • Twelve complete stories at full length — not summaries.
  • What we know, kept apart from what is still being argued over.
  • A painted plate per chapter, set for reading in a dark room.

969 pages · 213,383 words · 12 platesPDF + EPUB · DRM-free · $14.97 on its own

See all twelve chapters
  1. What Did Early Humans Actually Do All Day?
  2. 900,000 Years Ago Our Ancestors Dropped to 1,280 People — And Stayed There for 117,000 Years
  3. Every Other Primate Kept Its Fur. Why Did We Lose Ours?
  4. RH Negative Blood: Discovered in 1940, Still Not Fully Explained
  5. The Real Reason Humans Look So Different — And It Is Mostly Ultraviolet Light
  6. The Great Flood That Ended the Ice Age: Sea Levels Rose 400 Feet
  7. Why Civilization Appeared Almost Everywhere at Once, 12,000 Years Ago
  8. Did Humans Stop Evolving? The Last 10,000 Years Say No
  9. In 1177 BC Every Civilization on Earth Collapsed at Once — And Nobody Knows Why
  10. The 23,000-Year-Old Footprints in New Mexico That Shouldn't Exist
  11. Why Ancient Cities Sit Under Metres of Mud — And What That Isn't Evidence Of
  12. How Wolves Became Dogs: The Partnership Neither Species Planned
Choose your set
The Curator's CabinetThe Collector's CompanionVolume V — Civilizations, Journeys & SocietyVolume IV — Catastrophes & CollapsesVolume III — Lost Civilizations & MysteriesVolume II — Human Body & TraitsVolume I — Human Origins & Evolution

Everything, in one download

The Complete Library

Both books, plus the Sleepy Time History Reading Archive: the complete narration of 65 episodes, word for word, set as a reading edition — every story links to its video.

  • The 12 Warnings They Left Behind and 12 Mysteries of Our Prehistory, both in PDF and EPUB.
  • The Reading Archive: full transcripts of 50 channel favourites, including the twelve in 12 Mysteries — five thematic volumes in PDF and EPUB.
  • The Curator's Cabinet — transcripts of 15 lesser-seen episodes across 1,216 pages — and a 30-page illustrated Collector's Companion.
  • 50 individual reading editions · 65 plain-text editions · about 1.2 million words · over 9,400 PDF pages
  • Human Origins & Evolution1,136 pages
  • Human Body & Traits1,022 pages
  • Lost Civilizations & Mysteries953 pages
  • Catastrophes & Collapses581 pages
  • Civilizations, Journeys & Society332 pages
See all 65 episodes

Human Origins & Evolution

  1. What Did Early Humans Actually Do All Day?
  2. The Missing 100,000 Years: What Humans Did Before Civilization
  3. Why Humans Evolved Only in Africa: The Final Piece of the Puzzle
  4. Why Humans Stopped Evolving
  5. The Entire History of Human Evolution To Fall Asleep To
  6. The First Americans Were A Completely Different Species?
  7. What Made Homo Sapiens Rise Above All Species?
  8. Why Native Americans Are Not Who We Thought They Were
  9. How 2,000 Humans Saved Humanity from Extinction
  10. We Once Shared Earth With 8 Other Human Species — Then They All Vanished
  11. How Ancient Humans Invented Language—The Moment Our Brains Rewired
  12. The Mysterious Population Crash 900,000 Years Ago: What Really Happened?
  13. The Denisovans: A Human Species Vanished 50,000 Years Ago — But Their DNA Is Everywhere
  14. Why Neanderthals Were So Strange—and Why They Vanished

Human Body & Traits

  1. RH Negative Blood: The Secret Superpower That Lasts Till Today?
  2. How Humans Became White?
  3. How Humans Lost Their Fur
  4. Why Did Europeans And Asians Evolve So Differently? Mystery Explained
  5. The Real Reason Europeans And Africans Evolved So Differently
  6. Why Humans Don't Eat Meat-Eaters? (The 10% Energy Rule)
  7. The Story of Red Hair Was Never What We Were Told: The Mysterious Gene
  8. The Real Reason Asians Have Smaller Eyes?
  9. What Our Stone Age Ancestors Actually Ate — And What It Did to Their Bodies
  10. The Real Reason Humans Sleep 8 Hours (And Why It Once Nearly Killed Us)
  11. How Wolves Became Dogs: The Mutual Evolution We Never Thought Of
  12. The History of Medicine: How Humans Healed Across 300,000 Years
  13. Green Eyes: The Rarest Human Trait That Science Still Can't Fully Explain

Lost Civilizations & Mysteries

  1. The Lost Epoch: Unexplained Gaps in Human History
  2. We Are Not The First Civilization on Earth? Silurian Hypothesis Explained
  3. The Mud That Buried Civilizations: Ancient Reset Myths Explained
  4. What Really Happened in the First Human City? Life Inside the Oldest Walls
  5. The Oldest Writing on Earth Describes a World Before Us — And No One Can Finish Translating It
  6. The Derinkuyu Paradox: What Frightened Ancient Humans Enough to Build This?
  7. Before Rome an Entire Civilization Ruled Italy — Then They Were Erased
  8. Why Did Ancient Humans Suddenly Build Civilizations 12,000 Years Ago?
  9. Before Greece an Entire Civilization Ruled Europe — Then They Were Erased From History
  10. The Lost Civilization That Disappeared 9,000 Years Ago
  11. The Göbekli Tepe Paradox: What Made Hunter-Gatherers Build This 12,000 Years Ago?
  12. They Found Mysterious Mummies in China — Their DNA Matched No Known Population on Earth

Catastrophes & Collapses

  1. What Happened When Ice Ages Ended 12,000 Years Ago
  2. In 1177 BC Every Civilization on Earth Collapsed at Once — And Nobody Knows Why
  3. The Great Flood That Ended the Ice Age: What Happened 12,000 Years Ago
  4. 12,800 Years Ago Earth's Temperature Dropped Overnight — And Nobody Knows Why
  5. The Volcanic Winter That Ended Civilizations 536 AD
  6. 6 Million Years Ago the Mediterranean Sea Vanished — Then It Refilled in Weeks
  7. In 1200 BC a Mystery Army Destroyed Every Civilization — And Then Vanished Forever

Civilizations, Journeys & Society

  1. The Entire History Of Cats: 10,000 BC To Today
  2. What Really Happened When Columbus Landed in 1492?
  3. How did Persia Become Iran? The Story Nobody Told You!
  4. The Full Stone Age: How Humans Survived 3 Million Years Without Metal

The Curator's Cabinet

  1. Why Music Exists at All: A Mystery Older Than Language
  2. What Did Prehistoric Humans Dream About? The Origins of Symbolic Thinking
  3. Why Did Humans Start Burying Their Dead? The Birth of Ritual 100,000 Years Ago
  4. The Same 32 Symbols Appear in Ice Age Caves Worldwide — Was This Humanity's First Written Language?
  5. The 30,000-Year-Old Flute That Changed What We Thought Early Humans Could Do
  6. The Forgotten Plagues Before Civilization
  7. When Africa Was Green — The Sahara Pump That Moved Humanity
  8. How Did Neanderthals Survive 400,000 Winters Without Reliable Fire?
  9. When Britain Was Not an Island: The Rise and Fall of Doggerland
  10. How Ice Age Kids Actually Grew Up — Childhood 50,000 Years Before School
  11. The 9,000-Year-Old Village Found Under the Sea: What Happened to Atlit Yam?
  12. The 11,000-Year-Old Stone Heads That Shouldn't Exist: What Was Karahan Tepe Really For?
  13. The Lost People Who Built Europe's First Temples — 7,000 Years Before Stonehenge
  14. The Mysterious 30,000-Year-Old Calendar That May Have Tracked the Stars
  15. The Ancient Obsidian Trade That Shouldn't Exist: Who Connected the Stone Age World?

The Archive comes only with the Complete Library, $39.97 — $15.00 more than both books.

Choose your set

Read a little first

Two openings, exactly as they are set in the books. Nothing here is a summary of anything.

The 12 Warnings They Left BehindChapter 11 — The Peoples Created Before Humanity

Before there were people who remembered anything, there were three other attempts.

The gods who appear at the opening of this story — called by several names and titles, among them Heart of Sky and Gucumatz, the Feathered Serpent — want something specific from whatever they make: to be spoken to, fed, and kept in mind. Not obeyed in the abstract. Named, out loud, by beings capable of counting time and remembering their makers. Everything that follows is a series of attempts to produce something able to do that, and a series of verdicts on why the attempt has failed.

Keep reading

The first beings made are the animals of the forest and the mountain — deer, birds, jaguars, snakes — instructed to speak the names of their makers. They cannot. They squawk, chatter, and hiss, each in its own way, and no clear word comes out. The gods do not destroy them in anger. They simply reassign them: their flesh will be eaten, their calling will be to serve those who can someday speak properly. It is the first sign that this is not a story about one humanity going wrong and having to be judged. It is a story about humanity not existing yet, tried for in stages, like a design being prototyped and discarded.

The second attempt is worse. Beings made of mud and earth can speak, after a fashion, but without sense, and without the strength to hold themselves together. They cannot turn their heads. They dissolve in water almost as soon as they are made. This creation is abandoned as quickly as it is started, judged unfit before it even has the chance to fail on its own terms.

12 Mysteries of Our PrehistoryChapter 1 — What Did Early Humans Actually Do All Day?

By late afternoon, the light is changing. Shadows start to stretch, colors drain out of the landscape, and the temperature drops faster than you’d expect. For Paleolithic people, this isn’t just a pretty sunset. It’s a signal. A quiet alarm clock telling everyone: whatever you still need to do, finish it now.

The open landscape that felt manageable in daylight becomes something very different in the dark. Depth perception collapses. Predators that spent the day hiding in the shade start to move. So your ancestors begin to contract their world, pulling it inward, drawing activity toward the same thing that has defined evening for humans for at least hundreds of thousands of years.

Keep reading

Fire.

Not everybody had it all the time. There were probably still groups that lost fire occasionally, or went without during travel. But for many late Paleolithic communities, fire was as central to the evening as gravity is to your body right now. It’s not just a tool. It’s a boundary line. Inside the circle of light and warmth: us. Outside it: everything else.

As the sun sinks, people drift back toward camp, toward that flickering center. Gatherers return with armloads of wood, bundles of plants, maybe a few surprise finds—eggs, honey, shellfish. Hunters straggle in later, sometimes triumphant with meat, sometimes empty-handed and silent. Children, who have spent the day in a swarm of games and experiments, tighten their radius, pulled in by the same invisible gravity.

Or take a whole chapter away with you. The sample PDF is typeset exactly like the book — same cover, same trim, same face.

Download the free sample chapter

15 pages · Chapter 9, The Enclosure Built for a Deadly Winter, plus the introduction and that chapter's source list

Why a book, when the channel is free

Written for the hour you actually read them

Literata, a generous trim, wide margins and a full-page painted plate opening every chapter. Nothing on the page flashes, autoplays or asks you to keep watching.

The evidence, and where it runs out

Each chapter says plainly what is established, what is contested, and who is doing the contesting. Where the record simply stops, it says so instead of filling the gap.

Checkable, not just trustworthy

The 12 Warnings prints a source registry in the back: every translation, museum accession and piece of scholarship it leans on, with its citation and rights status.

Listen for free

The Sleepy Time Historian

Who is making this

I started Sleepy Time History about a year ago, after an injury left me unable to sleep. I spent those nights hunting for something interesting enough to hold on to and calm enough to let go of, and kept coming up short. Eventually it seemed easier to make it than to keep looking for it.

I hated history at school. It arrived as a textbook: dates to hold, names to return on a Friday, and no hint that anyone had ever argued about any of it. It was years before someone told me a piece of it as a question instead of a syllabus, and I realised the subject I had written off was the one I liked most.

So there is an irony I have made my peace with. I now make sleep documentaries about the thing I was certain would bore me, and a lot of people fall asleep to them every night.

A small team researches the topics. We use AI tools for the narration and much of the artwork, and real historical photographs wherever they exist. The books are that same research, written out properly and set for reading — which is the part the videos can never quite do, because you are asleep before the end.

Questions, answered honestly

Are these the episode transcripts?

Yes — the Reading Archive in the Complete Library is. It holds the exact narration of 65 episodes, word for word, lightly edited so it reads like a book rather than captions: chapter headings restored, spoken numbers set as numerals, lines spoken to a listener adjusted for a reader, and video-only asides such as calls to subscribe removed. Nothing is summarised. Every story links to its video on YouTube, so you can move between reading and listening.

Is every episode included?

No. The channel has published 404 episodes, and the Reading Archive is a selection of 65: 50 channel favourites in five thematic volumes, plus 15 lesser-seen episodes chosen for the Curator's Cabinet. Check the list for a favourite before you buy. See all 65 episodes

Are the two books the same as the videos?

One is, one is not. 12 Mysteries is twelve of the Archive's transcripts — the channel's biggest stories at full narration length — set as a single illustrated book. The 12 Warnings They Left Behind was researched and written for the book, and none of its twelve chapters exists as a video.

Do I need to read them in order?

No. Every chapter is self-contained, which is how they were written for the channel and how they are set in the books. Open at whichever title looks most like tonight. The 12 Warnings does group its chapters by the families the texts belong to, so reading it front to back shows those relationships more clearly — but it is an arrangement, not a dependency.

Will it actually help me sleep?

It is honestly built for it — the pacing, the trim, the typeface and the absence of anything that autoplays. But nobody can promise you sleep, and we are not going to. What we can say is that this is the same material, at the same hour, that 173,000 people already use that way.

What formats do I get, and where do they open?

PDF and EPUB, both DRM-free. The PDF keeps the plates and the typesetting exactly as designed and prints cleanly; the EPUB reflows for phones, tablets and e-readers, including Kobo and Apple Books, and can be sent to a Kindle. There is no app, no account and no subscription.

How do I get the files after paying?

Immediately. Checkout hands you a thank-you page with a download link for each file, and the same links are emailed to the address you used. The emailed links expire after seven days; the thank-you page does not — bookmark it and reopen it whenever you need a fresh copy.

What exactly is in the Complete Library?

Both books, plus the Sleepy Time History Reading Archive: the transcripts of 50 episodes, including the twelve that make up 12 Mysteries, arranged into five thematic volumes in PDF and EPUB, with a 30-page illustrated Collector's Companion and the Curator's Cabinet of 15 further episodes. There are also 50 individual PDF reading editions, one story each, and plain-text copies of all 65. Altogether it is about 1.2 million words and over 9,400 PDF pages. The Archive is not sold separately.

Can I get a refund?

These are digital files delivered the moment you pay, so there is nothing to return. If a file will not open, arrives damaged, or is not what this page described, email support within 14 days of buying and we will fix it or refund you in full.

Anything else at all — email [email protected].

Tonight, the story gets its ending.

Both books and 65 full episode transcripts in the Reading Archive, downloaded the moment you pay.

Or compare all four sets

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15 pages · Chapter 9, The Enclosure Built for a Deadly Winter, plus the introduction and that chapter's source list