Post #39970

Because these two facts are related we post them as one. Fact one: People once commonly shared beds with family — and even guests — and intimate encounters sometimes happened in those shared spaces. Fact two: Humans also practiced biphasic sleep (a “first” and “second” sleep); electric lighting and industrial schedules forced a shift toward a single consolidated night. [source fact one] [source fact two] @googlefactss#sleep#history