Episodes

A not so spooky science episode for Halloween

An episode with some disgusting facts, just in time for Halloween.

These are longer stories told one chapter at a time, in order, so you can follow along from the first night to the last. I introduce each chapter, and Clark’s music plays underneath my voice to keep you company. Here’s what’s on the shelf so far: Anne of Green GablesThe Secret GardenThe Boxcar ChildrenThe Bobbsey TwinsBunny Brown and His Sister SueThe Curlytops on Star IslandSix Little Bunkers at Grandma Bell’sThe Tale of Grandfather MoleThe Story of a Woolly DogThe Story of a Candy RabbitThe ...

In this episode, we’ll trade the big questions for a handful of small fun facts. We’ll meet a caterpillar that bluffs like a snake, then swim to a coral reef to find out how a fish helps make the sand on the beach. Lots of great facts to explore as you drift off to sleep . 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 Friends (Sleep Tight Premium) No ads on any of our 1...

We are bringing back this one from a few years ago. In this episode, we discover why you might have thought you saw a ghost. We found out that many cultures, even if they are far apart, have tales about ghosts or spirits. We looked at ghosts from a science perspective and learned that sometimes our eyes and brains play tricks on us, like seeing things that aren't really there. We also talked about how you could design an experiment to find out if the ghost your friend saw was real. Plus, we dive...

Éabha, who is six, and Fionn, who is eight, both wrote to us about the same thing: what is the red spot on Jupiter made of, and why is it red? In this episode, we'll find out that the Great Red Spot is a storm so big that Earth could fit inside it, and that a spacecraft called Juno has measured how far down it reaches. We'll visit a laboratory where scientists turned a frozen chemical reddish orange, and we'll learn why nobody can say for certain yet what colours the storm. Have a question of ...

Luna and Elodie both noticed that the pattern on one side of a butterfly looks copied onto the other. In this episode, we'll find out that butterfly wings actually grow separately, following the same genetic instructions. Along the way, we'll meet two genes that scientists found by switching them off, and see why the match isn't always perfect. 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?...

This episode’s question comes from Gabe, who lives in Des Moines, Iowa. Gabe wanted to know why cats rub against us. We will explore what a cat's scent glands are doing, why cats rub against each other, and what all of that might tell us about why your cat does the same thing to 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...

Ava, age 5, wants to know how bumblebees land on flowers. It turns out bees can sense something invisible in the air before they even touch down, and it took scientists years of clever experimenting to figure out what. We'll uncover the surprise hiding in our garden, then drift off to sleep as the bees head home for the night. 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 ...

Did you know a crow can remember your face? If it decides you're trouble, it can recognize you years later, and it might tell its friends. Even ones that never met you. Tonight's question comes from Anthony in Okemos, Michigan, who'd heard that crows hold grudges passed down through generations. We find out what a group of scientists in Seattle discovered when they tested it with rubber masks, and why "grudge" turns out not to be quite the right word. Have a question of your own? We'd love for ...

Did 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 Tig...

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...

Did you know the horned dung beetle is one of the strongest animals ever measured for its size?

A bedtime podcast for kids all about their favourite science topics

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...

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!,...

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...

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...

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. ...

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

A bedtime podcast all about the questions that kids wonder about science.

A bedtime podcast for kids all about science

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...

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...