About the show
A weekly science show that answers big questions from curious kids, perfect for drifting off to dreamland.
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We’ve got bedtime down to a (Sleep Tight) Science! Sleep Tight Science is an engaging bedtime show that makes science accessible and enjoyable for the whole family. Snuggle in and drift off to sleep while learning about science topics submitted by listeners! Designed for curious young minds (but simple enough for grown-ups to understand), Sleep Tight Science uses big words to answer big questions that kids wonder about, like why do we feel icky sometimes and how do our legs help us move? Learn something new about the natural world while drifting off to dreamland.
Fast Facts
- Audience
- Ages 5–7
- Network
- Sleep Tight Media | Bedtime Science Podcast For Kids & Starglow Media
- Format
- Listen in any order
- Typical length
- 26 min
- Episodes
- 179
- Seasons
- 6 seasons
- Topics
- Education For Kids
Listen now
Listen on the Once Upon a Pod app Hand-picked, kid-safe shows worth their earsor press play on any episode below to listen right here
Episodes
179 episodes
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Nocturnal Animals: How Can Anything See in the Dark? 🌙👀
25 min 9 September 2026Did you know the night is never really pitch dark, even with no moon out? There's always a little light, and some animals have eyes built to catch every bit of it.Tonight's question comes from Sage in Rochester, Minnesota, who wanted to know how nocturnal animals see in the dark We'll find out why an animal's eyes sometimes seem to glow in a flashlight beam, and why an owl has to turn its whole head just to look at you.Have a question of your own? We'd love for you to send it to us.Sleep Tight!, Sheryl & Clark❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Season 5 Finale: Everything Connects 🦏🦭🪲🧠🌌✨
28 min 2 September 2026What does a rhinoceros have in common with a flamingo, a hedgehog, and an eagle? Why does the same logic that put your brain in your head also explain how a crocodile lies in a river? And what does a dung beetle rolling dung across an African savanna have to do with a black hole? In this episode we 5 finale follow five threads that ran through all of season 5.Sleep Tight!, Sheryl & Clark❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Do You Know About the Dung Beetle? 🪲
25 min 26 August 2026In this episode, before you drift off to sleep, we are going to learn all about the dung beetle The dung beetle does a job nobody else wants It eats dung, rolls dung, and raises its young inside dung And while we think this is kind of stinky, we think it's a pretty extraordinary creature You might too.Sleep Tight!, Sheryl & Clark❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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What Would Happen If You Fell Into a Black Hole? 🕳️
26 min 19 August 2026In this episode we are going to try to answer the question, What Would Happen If You Fell Into a Black Hole And in trying to do so we are going learn all kinds of cool science. Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Fun Facts: Meat-Eaters, Giants, and the Strangest Dinosaurs 🦕
25 min 12 August 2026In this episode we are going to share some facts about dinosaurs We have other episodes on dinosaurs which you can find on our feed, but like you we still like to learn more about these fascinating creatures The inspiration for the episode came from your questions and a new book full of many fun and fascinating facts about things that go roar - or at least we think went roar Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Why Is Our Brain in Our Head? 🧠
23 min 5 August 2026In this episode, Shiying asked us why our brain is in our head and the answer took us back more than 500 million years to some of the earliest animals with a clear front end and back end It's an interesting question, one which we don't often answer because we think the answer is obvious right up until the moment you actually try to answer it Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Do you know about trees? 🌲 (New version)
18 min 29 July 2026Have you ever wondered about how trees grow? How can you tell how old they are? or Why are trees so important? In this episode we are going to talk about all these things With the help of Craig Tupper, a forester in New Brunswick Canada, we are going to try and answer some questions about trees. Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more stories and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Do you know about jets? ✈️🛫🌍🛬 (Encore vroom)
24 min 22 July 2026In this encore episode of Sleep Tight Science, we’re learning all about jets! What makes a jet different from other airplanes? How do jet engines work? And why are jets so fast? We’ll learn about the science of thrust, engines, and speed—and finish with some fun facts Sleep Tight!, Sheryl & Clark ❤️👂📖 📢 Send us your topics at hello@sleeptightscience.com , or leave a voice mail on our website: https://www.sleeptightscience.com ✨ Want more stories and fewer interruptions? Join Sleep Tight Family for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Do you know about mosquitoes? 🦟 ( Buzzy Encore )
27 min 15 July 2026In this encore episode, we’ll explore the fascinating world of mosquitoes You’ll learn what they are, why they buzz in our ears, why only some bite, and how they find us We’ll also discover what happens after a bite, how mosquitoes grow up, and even a few surprising ways they help nature stay in balance Sleep Tight!, Sheryl & Clark ❤️👂📖 📢 Send us your topics at hello@sleeptightscience.com , or leave a voice mail on our website: https://www.sleeptightscience.com ✨ Want more stories and fewer interruptions? Join Sleep Tight Family for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Listener Questions: Stars, the Universe, and Deep Time ✨ ⭐
28 min 8 July 2026In this episode, four listeners ask four of the biggest questions in astronomy We explore how the universe went from total darkness to its first stars, what a light-year really means, and what eventually happens to our sun Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stories every week, and personalized shout-outs for your little ones! Start your free trial now on Apple Podcasts or at sleeptightpremium.com Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts!
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Listener Questions: Plants, Seeds, and the First Green Thing 🌱🍃
27 min 1 July 2026In this episode we have two questions from two six-year-olds living on opposite sides of the world Nora Peng is six years old and lives in Hangzhou, China Yumi is six years old and lives in Florida in the United States Nora Peng wants to know where the very first seed on Earth came from And Yumi wants to know how plants get their colour Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions?
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Listener Questions: Chameleons, Octopuses, and Living Colour 🦎🐙
26 min 24 June 2026In this episode we have three super questions One from Callum is 6 years old and lives in Manchester, England He wants to know how chameleons change colour Next, Albert who is 5 years old and lives in Maine, wants to know something very specific — can chameleons turn white? And Cora who is 8 years old and lives in the Pacific Northwest, wants to know how octopuses change colour Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more science and fewer interruptions?
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How Things Work: Why Is Air Invisible? 🌬️🔍
27 min 17 June 2026In this episode we are going to try and find out what air actually is and why it counts as real matter — because it does, even though it behaves as if it has nothing to prove Then we'll look at what your eyes actually need in order to see something, and why air usually doesn't give them enough to work with And then we'll go looking for clues — because invisible things leave evidence, if you know where to look Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do You Know About the Capybara? 🦫
25 min 10 June 2026In this episode we are going to learn all about the Capybara, which has become famous for being extraordinarily calm, for sitting in hot springs, and for apparently allowing other animals to use it as a piece of furniture Including birds, monkeys and small reptiles Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do You Know About the Eagle? 🦅
28 min 3 June 2026In this episode, we will learn all about eagles We will discover how their eyes can spot a fish from three kilometres away, how their bodies are perfectly designed for hunting and flight, and why they build the largest nests of any North American bird And we will talk about Clark's cookie habit Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Fun Facts: Bodies, Beasts, and the Big Beyond 🧠🐾🚀
23 min 27 May 2026In this episode were are returning to one of our favourite and fun formats; fun facts! We have three lists with three different topics We'll start with some surprising facts about the human body Then we'll learn about the animal kingdom, where things get a little strange And then we'll zoom all the way out to outer space We will be covering a lot of different things Let us know if you like it! Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do you know about crocodiles? 🐊
27 min 20 May 2026In this episode we are going to learn all about crocodile, and hopefully, if you are listening to this before bed, get a good nights rest too Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do You Know About the Hedgehog? 🦔
26 min 13 May 2026In this episode, we learn about how hedgehog spines actually work, why hedgehogs can hunt venomous snakes without being hurt, what really happens to their body during hibernation, and a strange behaviour involving foam that scientists still can't fully explain Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Listener questions: The Science of Bioluminescence 🌊✨
26 min 6 May 2026In this episode, we're going to find out how bioluminescence works, where it lives, and what scientists have discovered by studying creatures that glow in the dark We'll go very deep into the ocean, and we'll meet some of the most interesting living things on Earth Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Do You Know Why Screens Are So Hard To Put Down? 📺
25 min 29 April 2026In this episode, we're going to look at what science says about looking at screens Researchers are still learning about the effects of staring at the screens of our devices, but what they've found so far explains a lot Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do You Know About the Flamingo? 🦩
25 min 22 April 2026Have you ever seen a flamingo and thought — that can't be a real animal? The colour alone is almost too much That particular shade of pink, standing in the water, reflected back up from the surface It looks like something someone painted But they are real, and in this episode we are going to find out all about them Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do you know about the Octopus? 🐙
35 min 15 April 2026In this episode, we're going to find out how the octopus thinks, how it hides, how it hunts, and why it might be the most fascinating animal in the ocean Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do you know about the Rhinoceros? 🦏
33 min 8 April 2026In this episode we are going to learn all about the Rhinoceros, and try something new! We have included a story about Rhino and Pip who will help us learn all about the life a rhino on the Savannah Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do you know about the Arctic Hare? 🐇❄️
28 min 1 April 2026In this episode, we're going to meet the Arctic hare The Arctic hare lives in one of the coldest, most remote places on Earth, the frozen tundra of northern Canada and Greenland, and it has some of the most amazing adaptations of any animal we can remember covering on our show Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Understanding Animals: Do you know about Giraffes? 🦒
25 min 25 March 2026In this episode, we’re going to explore the giraffe We will learn how its long neck works, how that enormous heart keeps everything moving, and how giraffes eat, sleep, and stay safe in one of the wildest places on Earth We’ll even meet a baby giraffe, and discover that its very first moment in the world is quite dramatic We have saved some big words for you too Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Listener Questions: Your Body Is Weird and Wonderful, Part 2 🧬 🦠 👣
24 min 18 March 2026This episode is Part 2 of our Weird and Wonderful series — and if Part 1 was about pain and itching and boo boos, Part 2 is about the other kind of body science The kind that makes you giggle a little Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Listener Questions: Your Body Is Weird and Wonderful, Part 1 🧠 ⚡ 🧬
27 min 11 March 2026In this listener questions episode we try to answer questions about our bodies Why things hurt Why things itch And why our body sometimes does things that seem completely strange - until science explains them Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Making & Creating: How Books Are Made 📚
31 min 4 March 2026We have a super big topic in this episode.We are going to try and answer the question, How are books made? We start with how paper is made, then, we'll explore how words and images get printed on those sheets and finally, we'll see how printed pages are bound together to become the books you hold, read, and love Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Making & Creating: How Rockets Work 🚀🧑🚀
29 min 25 February 2026In this episode we are going to try and answer the following question: How do rockets work—what makes them powerful enough to escape Earth's gravity and travel to space? Did you know that all our topics are submitted by you our listeners? Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts
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Making & Creating: How Is Chocolate Made? 🍫
29 min 18 February 2026In this episode, we're starting something new: a series of topics called Making & Creating, where we explore how people make things—from raw materials all the way to the finished products you see, use, and sometimes taste every day In this episode, we are going to try and answer the following question: How is chocolate made—from a tree all the way to the chocolate bar you unwrap? Sounds yummy Grown-ups: we value your feedback Our email and message link are in the episode notes—please send us your child’s questions and thoughts