Sleep Variability Benefits
Sleep patterns are not uniform; instead, biological variability in sleep preferences among individuals enhances collective safety. This distribution of sleep times reduces vulnerability, allowing some to be awake while others rest. Additionally, the adaptability of circadian rhythms to external light conditions highlights the importance of flexibility in biological programming for optimal survival.In this clip
From this podcast

Huberman Lab
Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine | Huberman Lab Guest Series
Related Questions
Why do people have certain chronotypes for sleep as discussed in episode 126: Matthew Walker | Unlocking the Power of Sleep and Dreams and the clip Sleep and Circadian Rhythms?
Why do people have certain chronotypes for sleep as discussed in the episode 126: Matthew Walker | Unlocking the Power of Sleep and Dreams and the clip Sleep and Circadian Rhythms?
Why do people have certain chronotypes for sleep as discussed in the episode Dr. Matthew Walker: The Biology of Sleep & Your Unique Sleep Needs | Huberman Lab Guest Series and the clip Understanding Chronotype?