US map showing bed time by county (actually kind of cool)

Jawbone has done a series of really interesting studies looking at how sleep in various cities and countries around the world.

A few months ago they compared how much people slept in three dozen citizens worldwide.

Among their findings:

Least Sleep: Tokyo, Japan – 5hr 44min
Most Sleep: Melbourne, Australia – 6hr 58min
Earliest to Bed: Brisbane, Australia – 10:57pm
Latest to Bed: Moscow, Russia – 12:46am
Earliest to Rise: Brisbane, Australia – 6:29am
Latest to Rise: Moscow, Russia – 8:08am

Now they’re looking at average bedtime per county in the US. And they’ve created a neat map:

time-zone-bedtime-big

Here’s a zoom of part of the Midwest, including Chicago:

midwest-zoom-beditme

Now what’s really fascinating is analyzing the color differences. Jawbone does this nicely, but I think they missed something. First, they note how strong demarcation along time zones. They note, correctly, that part of that is simply the time change itself. If two people, one on each side of the time zone border, go to bed at the same time, one person’s watch will show the time as 1030pm, the other’s will show 1130pm. Thus the strong demarcation.

They also note that people on the west side of a particular time zone go to bed later than those on the eastern side of the same time zone. Why? Because the sun sets in the west, so it stays lighter longer in the western side of the same time zone. And people’s circadian rhythms kick in when the sun sets.

But what I find fascinating as well is how much darker the East is from the midwest overall. Being from Chicago, I’ve always suspected that Eastern time made me go to bed later, because prime time television starts one hour later in the east than it does back home in the midwest. Back home mom and dad used to go bed after the 10 o’clock news. Out east, that’s often the 11 o’clock news. And the prime time shows are done by 10pm in Chicago, out east it’s 11pm. At least for me, the night feels done when prime time ends. And it feels done sooner in Chicago than it does DC.

And here’s their map showing number of hours slept per night — this one doesn’t tell me as much:

total-hours-night-sleep


Follow me on Twitter: @aravosis | @americablog | @americabloggay | Facebook | Instagram | Google+ | LinkedIn. John Aravosis is the Executive Editor of AMERICAblog, which he founded in 2004. He has a joint law degree (JD) and masters in Foreign Service from Georgetown; and has worked in the US Senate, World Bank, Children's Defense Fund, the United Nations Development Programme, and as a stringer for the Economist. He is a frequent TV pundit, having appeared on the O'Reilly Factor, Hardball, World News Tonight, Nightline, AM Joy & Reliable Sources, among others. John lives in Washington, DC. .

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