The BBC published an interesting article recently about how it was possibly customary until fairly recently to sleep in two sessions at night, with an hour or t

The BBC published an interesting article recently about how it was possibly customary until fairly recently to sleep in two sessions at night, with an hour or two of wakefulness in between them. People would get up, read, eat, talk with their partners etc. in the wakeful hours. TBH, I'm not sure the evidence is convincing, but it'd an interesting concept. http://www.bbc.co.uk/news/magazine-16964783 http://www.bbc.co.uk/news/magazine-16964783 [edit: earlier HN discussion of the BBC article: http://news.ycombinator.com/item?id=3620742 http://news.ycombinator.com/item?id=3620742]