In this episode, we’ll discover why yawning isn’t just about being tired—it helps cool your brain and can even be contagious! We’ll explore the nature of time and why building a time machine isn’t as simple as it sounds. We’ll also uncover why eating salty foods makes us thirsty and how different countries developed their languages over time. Finally, we’ll look at why children need parents and how this is similar to animals in the wild, where young creatures learn essential survival skills from their families.

Sleep Tight!,

Sheryl & Clark

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Resources

Why Do We Yawn?

Does salt increase thirst?

How does language evolution occur over time and what factors influence it?

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⭐⭐⭐⭐ Leave a review wherever you listen to podcasts, or share our podcast with your friends.

📢 Have an interesting science topic you would like to investigate? Send us an email at hello@sleeptightscience.com , and we may feature it in an upcoming show.

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About Sleep Tight Science

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. Have an interesting science question or a topic you’re curious about? Email us at hello@sleeptightscience.com, and it might just be the focus of an upcoming episode!

Dedicated to enhancing the health and happiness of children, Sleep Tight Media helps families replace bedtime struggles with bedtime snuggles.

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Made in Canada 🇨🇦

In this episode, you'll learn all about beavers! Discover how these skilled rodents shape their environment by building dams, lodges, and canals. Explore their unique adaptations—like waterproof fur, webbed feet, and ever-growing teeth—that help them thrive in water. You'll follow their life cycle from playful kits to hardworking adults, find out what's on their menu, and see how their underwater food storage helps them survive winter. Plus, learn how their engineering creates wetlands that support entire ecosystems!

Sleep Tight!,

Sheryl & Clark

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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 to podcasts, or share our podcast with your friends.

📢 Have an interesting science topic you would like to investigate? Send us an email at hello@sleeptightscience.com , and we may feature it in an upcoming show.

---

About Sleep Tight Science

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. Have an interesting science question or a topic you’re curious about? Email us at hello@sleeptightscience.com, and it might just be the focus of an upcoming episode!

Dedicated to enhancing the health and happiness of children, Sleep Tight Media helps families replace bedtime struggles with bedtime snuggles.

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Made by Sheryl & Clark on Prince Edward Island 🇨🇦

In this episode, we are going to learn about one of our favourite birds—the Canada goose! We’ll learn how these birds communicate, why they fly in a V-formation, and what makes them such devoted parents. Plus, we’ll discover why some geese travel thousands of kilometres while others stay put and how their growing presence can sometimes lead to conflicts with humans. Whether soaring through the skies or waddling through city parks, we think Canada geese are very cool!

Sleep Tight!,

Sheryl & Clark

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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 to podcasts, or share our podcast with your friends.

📢 Have an interesting science topic you would like to investigate? Send us an email at hello@sleeptightscience.com , and we may feature it in an upcoming show.

---

About Sleep Tight Science

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. Have an interesting science question or a topic you’re curious about? Email us at hello@sleeptightscience.com, and it might just be the focus of an upcoming episode!

Dedicated to enhancing the health and happiness of children, Sleep Tight Media helps families replace bedtime struggles with bedtime snuggles.

--

Made by Sheryl & Clark in Prince Edward Island 🇨🇦