Home Podcasts Lights Out Library: Sleep Documentaries
Lights Out Library: Sleep Documentaries

Lights Out Library: Sleep Documentaries

Olimpia Pérez 125 Episodes Jun 28, 2026

Lights Out Library helps you fall asleep with soothing stories across a diverse range of topics: science, history, mythology, astronomy, mystery, art and so much more. It makes it possible to both calm and enrich your mind while you drift into dreamland. The podcast is hosted by Olimpia Pérez and offers ad-free listening and bonus content via Patreon.

Episodes

Review of the Periodic Table (Elements 1 to 12) Sleepy Bedtime Science Jun 28, 2026 3941 In this science talk for bedtime, I review the periodic table of the elements methodically and explain in simple terms plenty of phenomena and concepts about chemistry and physics (for example in this episode: the structure of atoms, valence and reactivity, isotopes, allotropes, ionic compounds, the definitions of metals...) as well as the industrial and economic relevance of some of these element
Myths and Mysteries of Pre-Columbian America (Aztec, Maya, Apache, Navajo, Inca) Sleepy History Jun 21, 2026 10897 As long compilations of episodes that can accompany you for several hours were requested, we put this new one together. This is a compilation of three different stories: Maya and Aztec Mythology, Native American Myths (Navajo and Apache), and History of the Incas. This podcast is entirely scripted and recorded by real people, it includes no AI, and mid-roll ad breaks are turned off so that you c
Mysteries of the Celts: Druids, Hillforts, Hill of Tara, Gundestrup Cauldron (No AI) Jun 14, 2026 4110 This sleepy documentary is a time travel to the Celtic era to examine historical mysteries and discover more about Celtic culture. I will tell you about the druids: what we know of their emergence, their functions, their cultural importance, and the many aspects of druidism that remain mysterious. We will also travel to the Hill of Tara in Ireland, examine the mystery of the vitrification of hillf
History of Dinosaurs (Paleontology Documentary for Sleep, No AI) Jun 7, 2026 3509 This documentary sleep story is about the history of dinosaurs: What were they? When did they appear? How did they rule the Earth's continents for 150 million years? What happened to them? In this story I tell you about dinosaurs in general, various famous groups such as Brachiosaurus, Stegosaurus, Allosaurus, Triceratops, Tyrannosaurus, and more! I also tell you about paleontology, the study of f
Phoenix, Unicorn, Mermaid: Origins of Legendary Creatures May 31, 2026 4299 What are the origins of well-known legendary figures, such as the phoenix, the unicorn and the mermaid? From ancient symbols and myths to medieval bestiaries, we are going to explore their appearance and evolution and try to dig a bit deeper. Why do certain motifs such as the phoenix appear across various cultures? What are the Physiologus and the illustrated bestiaries from the Middle Ages? What
History of Cats: Evolution, Species, and Why Are They Like That? May 24, 2026 4180 In this soft-spoken bedtime story, I tell you about cats: their evolutionary history from the first Felidae to domestic cats, their species, their characteristics, and how they live. We will review extinct genera and species, such as Proailurus or the well-known saber-toothed cats from the Pleistocene, and many extant species: tigers, lions (and their hybrids: ligers and tigons), jaguars, leopards
History of the Incas | Documentary for Sleep May 17, 2026 4051 This documentary-style bedtime story takes us along lost trails of the Andes Mountains, to the discovery of several millennia of civilization in this region (Caral-Supe, the Valdivia culture, Chimu, Wari, Tiwanaku...), until the rise of the Inca Empire. I tell you about the history and culture of the Incas, as well as the development of their empire, from the small Kingdom of Cusco to one of the l
History of Ancient Crafts: Ceramics, Textile, Gold May 10, 2026 11438 This extended documentary-style bedtime story is a compilation of three different stories: History of Gold, History of Ceramics, and History of Textile. For each of them, I tell you about their evolution since Prehistory and the various types of objects, styles and techniques that were developed. This podcast is entirely scripted and recorded by real people, it includes no AI, and mid-roll ad bre
Journey to the Clouds | Documentary for Sleep May 3, 2026 3792 In this soft-spoken sleepy documentary, we travel across the various layers of the atmosphere, and I tell you about their composition, about various phenomena (how clouds form, why wind blows, why the sky looks blue, how the ozone layer works, what aurora borealis are...). We also take a look at the formation history of this atmosphere and how it regulates temperature and pressure on Earth. This
Elves, Dwarves, Orcs, Goblins, Trolls... Origins of Fantasy Creatures Apr 26, 2026 4118 We all know of modern fantasy creatures, and also that they owe a lot to J.R.R. Tolkien, other fantasy authors of the last 60 years, Dungeons & Dragons, or different franchises like Warhammer or Warcraft. But how did these different figures actually form? What are the mythologies, the folklore, and the more recent elements that gave birth to them? This is what we are going to examine in this episo
Sleep Space Cruise to Mercury and Venus (Revised) Apr 19, 2026 2747 In this bedtime story, we visit Mercury and Venus, two planets with formidable environments. I share with you various theories about their formation, of what they are composed, what to expect at their surfaces, and other interesting facts like how orbits form and are maintained, and what a supercritical fluid is. I hope you enjoy this relaxing way to learn more about space while quieting your mind
History of Genghis Khan and the Mongol Empire Apr 12, 2026 4401 Eight hundred years ago, the World was shaken when the Mongols suddenly left their corner of Asia to conquer the largest land empire in History. Join me as we explore who they were, how they lived, what they believed in and why they could take two continents by storm and build an empire in a few years. I tell you about Genghis Khan and his successors like Ogedei Khan and Kublai Khan, Chinese dynas

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