Outcome
    Moderate Evidence

    Black Cohosh for Improved Sleep Quality

    Sleep improvements appear secondary to fewer night-time hot flushes rather than a direct hypnotic effect.

    Overview

    Sleep improvements appear secondary to fewer night-time hot flushes rather than a direct hypnotic effect.

    Verdict

    Insufficient evidence

    How It Works

    Reduced vasomotor symptom frequency lowers night-time awakenings; central serotonergic activity may also play a role.

    Dosing & Protocol

    Typical dose

    Recommended dose
    40-80 mg/day standardised extract - only if night sweats are what wakes you
    Expected timeframe
    4-12 weeks, and only via vasomotor improvement

    Protocol

    studied dose
    40-80 mg/day of standardised extract in menopausal symptom trials
    evidence note
    Verdict is insufficient - sleep was never a primary endpoint
    what happened
    Some trials report improved sleep subscale scores, but sleep was never the primary endpoint and objective sleep measures were not used. Any benefit plausibly follows from fewer night sweats rather than a direct effect on sleep
    who it might suit
    Menopausal women whose awakenings are clearly caused by night sweats - then treat the sweats and sleep follows
    if your sleep problem is not vasomotor
    CBT for insomnia is first-line and more effective than any supplement

    Evidence

    What the studies say

    Some menopausal symptom trials report improved sleep subscale scores, but sleep was never the primary endpoint and objective sleep measures are absent.

    No studies are yet linked to both Black Cohosh and Improved Sleep Quality.

    Safety

    Caveats

    Black cohosh is not a sedative and has no direct sleep mechanism - do not use it as a sleep aid. Rare but serious liver injury has been reported: stop immediately with jaundice, dark urine, abdominal pain or unusual fatigue, and avoid in liver disease. Contraindicated in pregnancy and breastfeeding. Discuss with your oncologist in hormone-sensitive cancer. Limit to 6-12 months without review. Persistent insomnia deserves assessment for sleep apnoea, which is more common after menopause.

    Less likely to help if

    Anyone whose insomnia is not driven by night sweats, and people with untreated sleep apnoea or anxiety.

    Medical Disclaimer

    The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.

    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.