Episodes

Sept. 10, 2025

How Things Work: How Helicopters Stay in the Air 🚁🌙

In this episode, we picture a helicopter’s spinning rotor as a moving wing that makes lift; notice how blade pitchchanges lift; and hear how pilots use the collective (up/down), the cyclic (lean the “flying circle” to drift forward/sideways), and the pedals with the tail rotor to keep the nose steady. We touch on translational lift, ground effect, and the reassuring idea of autorotation—how helicopters can glide safely if the engine has a problem. Grown-ups: we value your feedback. Our email an...
Sept. 3, 2025

How Things Work: Fidget Toys and Focus 🧠🌙

Season 5 begins! In this episode we look at how fidget toys can help some brains focus—and why bedtime calls for softer tools. We explore attention as a gentle “spotlight,” meet the hidden sense of proprioception, try tiny visualizations, and learn the Three S’s for helpers: Silent, Simple, Small. Perfect for winding down while learning something real. Grown-ups: we value your feedback. Our email and message link are in the show notes—please send us your child’s questions and thoughts. Sleep T...
Aug. 27, 2025

🎉 Season Finale: from 3D Printing to Stardust 🖨️⭐🌌

In this episode we're going to try our best to summarize 48 episodes of science discoveries—from 3D printers and ancient stardust, to why your body makes gas and Mars has a butterscotch sky. We'll revisit amazing body systems, blast off to explore space, and celebrate all the fantastic questions you've sent us. Plus, some fun facts that will make you the most interesting person at breakfast! Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want more stories and fewer interruptions? Join Sleep Tight ...
Aug. 20, 2025

Do you know about Stink Bugs? 👃 (Plug your nose encore)

While we take a short break this week, we’re bringing back one of our favourite Sleep Tight Science episodes all about Stink Bugs. Plus, we will share some fun facts about them and answer listener questions. 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 ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠sleeptight...
Aug. 13, 2025

Do you know about our solar system? ☄️ (Bernice learns science)

While we take a short break this week, we’re bringing back one of our favourite Sleep Tight Science episodes all about the solar system—featuring Papa Bear telling Bernice about planets and moons, while they have some super yummy cookies. 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 Podcas...
Aug. 6, 2025

Do you know about Polar Bears? 🐻‍❄️❄️🧊

In this episode, we travel to the Arctic to learn all about polar bears! Discover how their giant paws, thick fur, and clever hunting skills help them survive freezing temperatures. We explore their life cycle, behaviours, and how they’re different from other bears—plus, why they don’t eat penguins! Then, we answer listener questions about sea animals in winter, the magical northern lights, and whether the North Pole belongs to any continent. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want mor...
July 30, 2025

Listener questions: Fuzzy Berries, Green Grass, Wiggly Weeds & Crooked Trees 🌱 🍃 🍎 🌿

Perfect for bedtime or anytime curious minds want to explore nature’s hidden science.
July 16, 2025

Listener Questions: From Slimy Eggs to Stinky Science 🔬🍬👃🥚

It’s a curious, cozy, science-filled journey—perfect for bedtime or anytime wonder strikes.
July 9, 2025

Do you know about mosquitoes? 🦟

A bedtime science show for kids all about mosquitoes.
July 2, 2025

Do you know about jets? ✈️🛫🌍🛬

In this bedtime science episode we learn all about jets.
June 25, 2025

Fun Facts: The Cutest Animals in the Wild 🐾🦊🐼🦔🦦🐒

Perfect for fans of wildlife, nature, bedtime stories, animal science, and curious young minds.
June 18, 2025

✨Updated✨ Do you know about robots? 🤖 (Sheryl lost her voice encore)

Halfway through recording our latest episode, Sheryl's voice started to sound like a frog, and then like something else we couldn't identify. Sheryl caught a virus that is causing her to cough and affecting her voice. She should be back to normal next week, and with a new episode. Otherwise, you might have to listen to me (Clark) talking to you about science. 😳 Did you know? In this episode of Sleep Tight Science, we are going to start to learn all about Robots and try to answer some of the que...
June 11, 2025

Listener Questions: Ouch! Barf! Bumps! and the Moon 🌕🚌🤢⚡

In this episode, we will learn all kinds of fascinating science from the questions you sent in! Questions like why we feel pain, and how it's our body's way of protecting us by sending warning signals to the brain. Why we vomit, and the amazing teamwork between your brain and belly that helps protect you from things that might make you sick. Then we learn why buses are so bumpy, especially in the back. Next, we will travel back in time to learn about the ancient Greeks' contributions to science,...
June 9, 2025

🎉 We need your help with season 5! 🎉

Clark is working on Season 5 of Sleep Tight Science—and we’d love your help! What science topics do you want to hear next? Should we change the music? Make the episodes longer? Shorter? Or something totally new? Talk it over with your grown-ups and send us your ideas by email (Email us at ⁠⁠⁠⁠hello@sleeptightscience.com⁠⁠⁠⁠ or via our website). If we use your suggestion, you’ll get a special shoutout in an upcoming episode! We can’t wait to hear what you come up with. Sleep Tight!, Shery...
June 4, 2025

Do you know about the Koalas? 🐨

Perfect for sparking bedtime curiosity or thoughtful family chats, this episode blends science, storytelling, and compassion to help young listeners understand—and care about—these fuzzy, tree-hugging creatures from down under.
May 28, 2025

Do you know how your memory works? 🧠

In this calming and curiosity-sparking episode of Sleep Tight Science, we explore the fascinating world of memory.
May 21, 2025

Do you know about Jellyfish? 🌊🪼

In this episode of Sleep Tight Science , we learn all about the world of jellyfish! Discover why jellyfish aren’t really fish, how they sting, what they eat, and the incredible ways they glow, swim, and grow. From tiny Irukandji to the giant lion’s mane, you’ll learn all about where jellyfish live, how they move, and their strange life cycle. Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more stories and fewer interruptions? Join Sleep Tight Premium for ad-free listening, bonus bedtime stori...
May 14, 2025

Do you know why the sky is blue? ☀️🔵

In this episode of Sleep Tight Science , we take a colorful journey through the science of sunlight, scattering, and the atmosphere to find out why the sky looks blue during the day and red at sunrise and sunset. We’ll explore what light really is, how it behaves, and why the sky on other planets can look completely different! This calming, curiosity-sparking episode is perfect for kids who love to wonder about the world around them, and above them. Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want...
May 7, 2025

Listener questions: Winter colds, celiac disease, your teeth and yawning ❄️🦷🛌

In this episode, we’ll answer some of the questions you’ve sent in!
April 30, 2025

Do you know about semiconductors? ⚡💻

Semiconductors might be tiny, but they do BIG things! In this episode of Sleep Tight Science, we explore what semiconductors are, how they’re made, and why they’re so important in everything from smartphones and laptops to space rockets and self-driving cars. This episode is perfect for curious minds who love asking questions like How do computers work? or What makes my phone so smart? Sleep Tight!, Sheryl & Clark ❤️👂📖 ✨ Want more stories and fewer interruptions? Join Sleep Tight Premium f...
April 23, 2025

Do you know about Computer Science? 🖥️💡

In this episode, we're going to start to learn all about the amazing field of computer science. We'll talk about what computers really do, how we can talk to them using code, and how they follow step-by-step instructions called algorithms. We'll even explore a big question: can computers learn? And finally, we'll think about how you might learn computer science someday—and what you could do with those skills.
April 16, 2025

Fun Facts About Wild Cats & Wild Dogs 🐆🐺

In this episode, we'll learn all about cats and dogs—but not the kind that curl up on your couch or chase tennis balls in your backyard. We will explore facts about wild cats and dogs—the fierce, the fast, and … the faunal!? Sleep Tight!, Sheryl & Clark ❤️👂📖 --- Please check out: www.abcmouse.com/sleeptightscience --- Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts! 🎉 ⭐⭐⭐⭐ Leave a review wherever you li...
April 9, 2025

Do you know about batteries? ⚡🔋

In this episode, we will explore how batteries work, how they are made, the different types you might find at home or school, and why some gadgets gobble up more power than others. We'll even look at some wild, wacky, battery-powered inventions that might spark your imagination. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- Support Us 👉 Join Premium for AD FREE listening and extra bedtime stories! 👉 Sleep Tight Premium is now available in Apple Podcasts! 🎉 ⭐⭐⭐⭐ Leave a review wherever you listen...