Why Do Humans Sleep? | Human Body Songs For Kids | KLT

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Sleep is really important to our health, let&learn more about it! MORE KLT: ► Watch a related video: LINK KLT is THE destination for kids to learn about the world around us through fun, original music and unique animation. Tune in EVERY Saturday for new videos! _________ Why Do Humans Sleep? | Human Body Songs For Kids | KLT

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