Why Sleep Matters

When we miss sleep in order to keep up with our 24/7 world, we pay a price with our ability to learn, our health and safety, and our quality of life

Benefits of Sleep

Although science has uncovered no clear answer to “Why do we sleep?” we are discovering more about sleep’s important functions. go to this section

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Girl on Piano

Why Sleep Matters (6:13)

Sleep researchers are discovering how sleep is vital for learning and memory, and how lack of sleep impacts our health, safety, and longevity.

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Dr. Robert Stickgold

Sleep, Learning, and Memory (1:52)

Dr. Robert Stickgold discusses how sleep plays a role in memory, both before and after a new learning situation.

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Fox sleeping

Why Do We Sleep, Anyway?

Although scientists aren’t entirely sure why we sleep, they have many ideas about the functions of this mysterious part of our lives.

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Consequences of Insufficient Sleep

Most of what we know about sleep’s functions can be seen in light of what goes wrong when we deprive ourselves of this vital activity. go to this section

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Drowsy driving depicted

Why Sleep Matters (6:13)

Sleep researchers are discovering how sleep is vital for learning and memory, and how lack of sleep impacts our health, safety, and longevity.

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Dr. Taking blood pressure

Sleep and Disease Risk

The price of insufficient sleep may be poor health. Study after study has revealed that people who sleep poorly are at greater risk for a number of diseases and health problems.

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Dr. Robert Stickgold

Sleep and Judgment (1:06)

Dr. Robert Stickgold discusses a study that suggests a link between sleep loss and increased impairment in judgment.

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Dr. Charles Czeisler

Drowsy Driving (0:42)

Dr. Charles Czeisler discusses the link between motor vehicle accidents and tired drivers.

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Historical and Cultural Perspectives of Sleep

“Waste of time,” “royal road to the unconscious” or key means to sustain life and health: How we look at sleep varies across cultures and has changed through time. go to this section

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Sleep: A Historical Perspective

Explore sleep and sleep research with this interactive.

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