Learning & talent
Sleep and your brain
No skill survives a tired brain. Sleep is when memory consolidates and judgment resets, and the research is blunt: a week of short nights drags performance down toward levels we would never accept if we noticed them. A rough, honest estimate, not medical advice.
- Rough daytime performance
- 95%
- After a week, you feel
- Basically fine
- Sleep debt / week vs 8h
- 7h
Loosely based on sleep-restriction research (e.g. Van Dongen et al., 2003). The unsettling finding: people adapt to feeling fine long before their performance recovers.