Valerian Root Improves Perceived Sleep Quality But Not Duration
Valerian root helps improve perceived sleep quality in people with insomnia but does not reliably affect objective measures such as time to fall asleep or total sleep time.
- Significantly improves perceived sleep quality in insomnia patients.
- No effect on sleep duration, latency, or architecture.
| Claim | Scientific Observation | Impact Magnitude | Source | ||
|---|---|---|---|---|---|
| Enhances subjective sleep quality | Statistically significant positive effect in insomnia patients | SMD = 0.463, p = 0.008 | Shinjyo et al. (2020), Journal of Evidence-Based Integrative Medicine | ||
| No effect on objective sleep metrics | No significant impact on latency or total sleep time | N/A | Shinjyo et al. (2020), Journal of Evidence-Based Integrative Medicine |