Jerry
Preview
Open in TheBrain
Welcome! (start here)
Humanity (Humans)
People
The Human Body
Posture
Lying Down
Sleep
What Happens to Us when We Sleep?
Sleep Patterns and Needs
Biphasic and Polyphasic Sleep
Attachments
wikipedia
Parents
Sleep Patterns and Needs
Children
2021-12 REX Call
Polyphasic Sleep
Roger Ekirch
Siesta
The Second Sleep: A Novel (2019)