With Polyphasic Sleep, You Can Thrive on as Little as Two Hours per Night - Big Think
June 5, 2019 4:24:27 PM PDT - permalink - -

- https://bigthink.com/philip-perry/want-more-hours-in-the-day-heres-how-to-thrive-on-as-little-as-two-hours-sleep-per-night#Echobox=1559771251