About 40 percent of high schools start before 8 a.m., which contributes to chronic sleep deprivation among teens, according to the American Academy of Pediatrics. Chris Waits/Flickr hide caption

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About 10 percent of Americans have chronic insomnia. iStockphoto hide caption

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Teenagers' sleep patterns may be a clue to their risk of depression. iStockphoto hide caption

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Research suggests basic forms of learning are possible while snoozing. iStockphoto.com hide caption

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Though scientists have identified sleepwalking triggers, the condition is still a bit of a mystery. Victoria Alexandrova/iStockphoto.com hide caption

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A pediatrician says parents often mistakenly believe all baby accessories are safe.

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Sleep researchers say parents of a new child can be a risk for long-term insomnia. Timothy M. Black/iStockphoto.com hide caption

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