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A comment on Investing in lighting did great things for my mental and physical health. Parent comment

Re:Investing in lighting did great things for my mental and ... by hammyhavoc on Friday May 27, 2022 @10:06PM (#31536983)
Our ancestors used to go to bed earlier and wake up in the middle of the night for a while before going back to sleep. Our schedules and concept of 'normal' (versus 'natural') has changed drastically.
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Re:Investing in lighting did great things for my mental and ... by shagie on Friday May 27, 2022 @10:36PM (#31537114)
For more info on the two sleeps:

The forgotten medieval habit of 'two sleeps' -- https://www.bbc.com/future/article/20220107-the-lost-medieva... and the HN post: https://news.ycombinator.com/item?id=29886907

And Wikipedia: https://en.wikipedia.org/wiki/Biphasic_and_polyphasic_sleep

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