{"claimId":"clm_ec_val_sleep","grade":"C","version":0,"status":"current","verdict":"Valerian for sleep: Grade C at low certainty. evidence is genuinely mixed: some low-quality trials report small improvements in subjective sleep quality, but the most rigorous reviews find no significant difference from placebo. Considered safe; not reliably effective.","direction":"benefit","magnitude":{"metric":"other","value":null,"unit":"","ci95":null,"humanReadable":"evidence is genuinely mixed: some low-quality trials report small improvements in subjective sleep quality, but the most rigorous reviews find no significant difference from placebo. Considered safe; not reliably effective.","baselineAbsoluteRisk":null},"certainty":"low","clinicalMeaning":"small_but_potentially_useful","applicability":{"appliesTo":["adults with insomnia"],"doesNotApply":[],"unknown":[]},"safetyQualifiers":[],"evidenceBundleId":"eb_ec_val_sleep","citations":[{"pmid":"17145239","design":"peer-reviewed"},{"pmid":"17517355","design":"peer-reviewed"}],"reviewedBy":null,"reviewedAt":"2026-07-16T07:08:29.044Z","dateModified":"2026-07-16T07:08:29.044Z","methodologyVersion":"v1","methodologyDoi":"https://doi.org/10.5281/zenodo.21364236","canonicalUrl":"https://evidencebased.info/interventions/valerian/sleep","attribution":"Substrate (evidencebased.info), claim clm_ec_val_sleep v0, reviewed 2026-07-16","license":"CC-BY-4.0 proposed; reuse license pending governance ratification","governanceMode":"legacy","governanceStatus":"legacy-unverified","dataSource":"live"}