Longer daylight linked to 4.4 minutes less sleep per extra hour of light (nature.com)

Title: Variation in sleep duration across latitudes and countries: a Bayesian hierarchical analysis of wearable data

Founder here

We worked on a publication for NPJ biological timing and sleep

A few things that are surprising from the research

- sleep duration decreases by 4.4 minutes for each additional hour of daylight

- The effect didnt get much stronger at higher altitudes (even though daylight swings are much larger)

Plain English summary here

https://tryterra.co/research/terra-research-nature-publicati...