Episodes

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...

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...