Conventional wisdom tells us that we should get at least eight hours of sleep a night, but a recent report by the BBC suggests that this might just be a myth.
Historian Roger Ekirch believes that in the past, it was normal to get two sleep sessions, one early evening, a break, and then a second later at night.
The report cites historical evidence that seems to prove this pattern; neighbors visited between sleeps and doctors advised that conception of a child is best between sleep sessions.
Learn more about the report in the video above.
In order to better understand what sleep does for your body and brain, here's a look at what's happening as you transition from going about your day to hitting the hay.
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