The KEY to Great Sleep Outdoors - YouTube
July 12, 2022 at 4:40:44 PM PDT * - permalink - -

- https://www.youtube.com/watch?v=aPxddfPf5UQ

Our Teen Who Dies If He Falls Asleep | Living Differently - YouTube
March 5, 2021 at 2:24:57 PM PST * - permalink - -

- https://www.youtube.com/watch?v=6kVpRNlc-8w

With Polyphasic Sleep, You Can Thrive on as Little as Two Hours per Night - Big Think
June 5, 2019 at 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