Episodes

Sept. 2, 2026

Season 5 Finale: Everything Connects 🦏🦭🪲🧠🌌✨

What 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, bonu...
Aug. 26, 2026

Do You Know About the Dung Beetle? 🪲

Did you know the horned dung beetle is one of the strongest animals ever measured for its size?
Aug. 19, 2026

What Would Happen If You Fell Into a Black Hole? 🕳️

A bedtime podcast for kids all about their favourite science topics
Aug. 12, 2026

Fun Facts: Meat-Eaters, Giants, and the Strangest Dinosaurs 🦕

In 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 que...
Aug. 5, 2026

Why Is Our Brain in Our Head? 🧠

In 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!,...
July 29, 2026

Do you know about trees? 🌲 (New version)

Have 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...
July 22, 2026

Do you know about jets? ✈️🛫🌍🛬 (Encore vroom)

In 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 inte...
July 15, 2026

Do you know about mosquitoes? 🦟 ( Buzzy Encore )

In 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. ...
July 8, 2026

Listener Questions: Stars, the Universe, and Deep Time ✨ ⭐

A wonder-first, bedtime-friendly introduction to stellar science for kids ages 5–11.
July 1, 2026

Listener Questions: Plants, Seeds, and the First Green Thing 🌱🍃

A bedtime podcast all about the questions that kids wonder about science.
June 17, 2026

How Things Work: Why Is Air Invisible? 🌬️🔍

In 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 no...
June 10, 2026

Understanding Animals: Do You Know About the Capybara? 🦫

In 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. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want more stories and fewer interruptions? Join...
June 3, 2026

Do You Know About the Eagle? 🦅

In 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. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want more storie...
May 27, 2026

Fun Facts: Bodies, Beasts, and the Big Beyond 🧠🐾🚀

In 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 sen...
May 20, 2026

Understanding Animals: Do you know about crocodiles? 🐊

In 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. 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 one...
May 13, 2026

Do You Know About the Hedgehog? 🦔

A kids science podcast where kids submit the questions.
May 6, 2026

Listener questions: The Science of Bioluminescence 🌊✨

In 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. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want more stories and fewer interruptions? Join...
April 29, 2026

Do You Know Why Screens Are So Hard To Put Down? 📺

A bedtime show answer listeners questions about screen time.
April 22, 2026

Do You Know About the Flamingo? 🦩

Have 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. Sleep Tight!, Sheryl & Clark ❤️👂📖 -...
April 15, 2026

Do you know about the Octopus? 🐙

A bedtime show and story about the octopus
April 8, 2026

Do You Know About the Rhinoceros? 🦏

A bedtime science show for kids
April 1, 2026

Do you know about the Arctic Hare? 🐇❄️

In 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. Sleep Tight!, Sheryl & Clark ❤️👂📖 --- ✨ Want more stories and fewer interru...
March 25, 2026

Do you know about Giraffes? 🦒

A bedtime podcast featuring science questions submitted by kids.