The Two Sleeps

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TLDR

  • Dylan Araps argues that unbroken 8-hour sleep is a modern artifact of the 9-5 schedule, not a biological default, drawing on Mediterranean agrarian sleep patterns.

Key Takeaways

  • Pre-industrial Mediterranean societies used polyphasic sleep: a summer siesta split the workday, reducing the night sleep needed.
  • In winter, a short wakeful period mid-night between two sleeps was common, matching longer nights and early sunsets.
  • Greek business hours (9-2, 5-10) preserve the split-day structure as a living cultural norm, not nostalgia.
  • Artificial lighting and precise timekeeping eliminated environmental cues that made polyphasic rhythms self-regulating.
  • The post treats siesta as a superior productivity architecture, not merely a rest habit.

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