Cut Off Caffeine 8 Hours Before Bed for Sound Sleep
To prevent sleep disruption, stop consuming caffeine at least 8 hours before bedtime.
- Caffeine's 5-6 hour half-life means it remains active in the body long after consumption, blocking sleep-promoting adenosine.
- Intake 6 hours before bed still cuts total sleep by about 1 hour compared to no caffeine.
| Claim | Scientific Observation | Impact Magnitude | Source | ||
|---|---|---|---|---|---|
| Caffeine 6 hours before bed | Reduced total sleep time | 1 hour | Drake et al. (2013) | ||
| Caffeine half-life | Persistence in body | 5-6 hours | Drake et al. (2013) | ||
| Caffeine before bed | Increased sleep latency | over 1 hour | Drake et al. (2013) | ||
| Recommended cutoff for minimal disruption | Avoided sleep impacts | 8 hours | Drake et al. (2013) |