We used to sleep twice each night
These stories always seem to fit a very nice narrative, using anecdotal evidence to back up what we think sounds right... I would love to see some actual scientific study on this.<p>I've no doubt that we're not sleeping optimally at the moment with all the artificial light and impositions on our time, but at the same time not everyone sleeps the same way, and just because we sleep differently to how we would naturally do it, doesn't necessarily mean it's worse.<p>Personally I run best with a good 8-9 hour sleep and a quick 20 minute power nap in the mid afternoon, but other people I know find that more than 6-7 hours sleep exhausts them, or other people who can't stand naps.<p>I think the best takeaway from this article is that we definitely need better sleep research.