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A comment on Ask HN: How many hours of sleep are you getting?. Parent comment

Re:Ask HN: How many hours of sleep are you getting? by Beekon on Sunday May 05, 2013 @12:59PM (#5658978)
Might be interesting to know that caffeine is not necessarily what many perceive it to be:

http://www.guardian.co.uk/science/2010/jun/02/drinking-coffe...

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