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Before the rise of industry, it was normal for people to sleep in two phases each night.
People had no set bedtimes. Sleeping was determined by whether or not there were things to do. Most people would have a first and second sleep, with a couple of hours awake inbetween. This is probably the way humans are supposed to sleep.
Modern schedules don't really let us do that. Perhaps we should think about changing that.
https://www.sciencealert.com/humans-used-to-sleep-in-two-shifts-maybe-we-should-again
@InvaderXan I'm doing a lot of research that touches on this, and other aspects of the history of Night in Urban environments!
@MordecaiPinhas
Oh, interesting. In urban environments generally, I'm guessing it involves a lot of things to do with street lights too. Are you looking only at effects on people, or are you including wildlife too...?
@InvaderXan I'm looking at the socio-cultural history, so not so much focus on science and wildlife
@InvaderXan Although there is a historian, Wolfgang Schivelbusch, who does really fascinating stuff by looking at the ways societies and their technologies (in this case, lighting) mirror each other
@MordecaiPinhas
Nice. I’ll look him up, thanks.