This article in the New York Times challenges the many popular misconceptions about sleep, which remains one of the least understood functions of the human body.
For example, the notion that we all need 8 hours of sleep is baseless, and varies from person to person, while sleeping for just 24 minutes in the day can lead to a remarkable increase in cognitive function.
Clearly, what we need is more sleep research. Indeed, I think there should be a distinct medical field devoted strictly to sleep and sleep-related issues. It’s remarkable that with how important sleep is, and how so many people struggle with trying to attain it, we invest so little in learning more.