Theresa Fisher is VW's science editor. She does her best sleeping in the early morning light and her best thinking late at night.
The first study to test the "sentinel hypothesis" in humans.
Your weekly nightcap.
And other Insight from a new paper examining the relationship between sleep duration and birthplace.
Is moderate sleepiness the sweet spot for living on the edge?
A new paper says sharing beds with dogs and babies raise a lot of the same questions.
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