When You Can't Sleep, How Good Is Lying in Bed With Your Eyes Closed? - The Atlantic

The key differences between sleep and "quiet wakefulness"
The key differences between sleep and “quiet wakefulness”

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Why Do We Sleep? - The Atlantic

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Why Do We Need to Sleep? - The Atlantic

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If you lie in bed unable to fall asleep, is just lying there with

When You Can't Sleep, How Good Is Lying in Bed With Your Eyes

Can you keep your eyes closed and not fall asleep? - Quora

Betty White Quote: “I don't seem to require a lot of sleep. I just