我们为什么要睡觉 / Why We Sleep

《我们为什么要睡觉》 is the sleep book cited in the original episode file and summarized in 中年三账户：现金流、肌肉、睡眠. The episode uses it mainly for the bedroom-temperature point: cooler sleep environments can support the body-temperature drop associated with falling asleep.

The book reference sits inside Sleep As Daily Health Account, not a standalone medical protocol. The episode’s practical emphasis is environmental: regular wake time, morning natural light, darkness, reduced late screens, earlier caffeine, alcohol caution, and temperature management.

Connections

• Sleep As Daily Health Account - main sleep framework using the book reference.
• Memory Consolidation Windows / 记忆巩固窗口 - adjacent wiki page where sleep supports memory consolidation.
• Personal Health Data - wearables and sleep metrics can make patterns visible, with limits.
• Environment Over Willpower - input-control frame the episode applies to sleep.