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😴 Why We Sleep

Why do we sleep every night? Let's find out while we rest!

lesson

~5 min

to learn

🔬 Science

subject

Ages 3–5

level

Start the course →

What you’ll learn

Explain that sleep rests the body, helps growth, and helps the brain, and that kids need lots of it.Sleep rests our body and helps children grow. The brain stays busy sorting what we learned. Young kids need about ten to thirteen hours of sleep to feel happy and ready to play.

Questions this course answers

What does sleep do for our body?

Sleep rests the body and helps children grow strong and healthy.

What does your brain do while you sleep?

During sleep the brain sorts and stores the things you learned that day.

Grounded in trusted sources

Nemours KidsHealth, Why Do I Need to Sleep?, kidshealth.org
American Academy of Sleep Medicine (sleep hour guidelines)
National Institutes of Health (NIH), nih.gov

Every Wunder lesson is built from real, reputable sources — never invented.

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