Biphasic Sleep Vs. a Continuous 8 Hours

By Bbenzon @bbenzon

While the soul of this message is true—we shouldn't pathologize every waking moment—the history is a bit more complex.
- Biphasic sleep was real. Pre-industrial humans did sleep in two shifts. We lost this not to a mattress conspiracy, but to artificial light, which compressed…

— Emeka Sepi Maduka (@Sepiyoung) April 5, 2026