A few years ago I decided that not getting sleep was not good. I yap about napping a lot but it is one of the few things I make a point of doing. And I am not talking about dealing with a cold. But I seem to have put my head down last night at 4:30 pm and pretty much snoozed until 7:15 am. I remember one 9 pm to 2 pm snooze years ago when I visited a pal’s place, a huge old manse, and they just let me go to see how long I would sleep. One other time, not long after having kids, I was at a business retreat and no one noticed that I slipped stay at 8 pm, barely getting up to find the last scraps of lunch. I think I tried to convince people that I had been in the “other” presentation but it turned out there was only one.
I read about second sleeps a few years ago, that there is some evidence for sleeping patters in the pre-inductrial past being different, more 7 pm to 1 am and 3 pm to 6 pm. There’s a wikiality post on it called “segmented sleep“. There seems to have been an article on the topic in an eggheady periodical as noted by this website as well as at the end of this article. Interesting to note that it is electric lighting that is blamed for the change and how dreams would have been more a topic of discussion. If dreams were as surreal then as today, they would have been more noteworthy in a pre-mass-entertainment and even pre-surrealism world as well.