HerbsAshwagandha

Standardized ashwagandha extracts improve sleep quality in stressed adults

Clinical trials with standardized ashwagandha extracts have shown reductions in stress-related biomarkers and improvements in sleep quality. The review highlights these effects as part of ashwagandha's adaptogenic and neuroimmune regulatory properties.

Last updated: Aug 26, 2026โ€ข0 RCTsโ€ข๐Ÿ“– Read as article โ†’

Evidence Score

Evidence Score32/100
Human RCTโ˜†โ˜†โ˜†โ˜†โ˜†
Meta-analysisโ˜†โ˜†โ˜†โ˜†โ˜†
Mechanismโ˜…โ˜…โ˜…โ˜…โ˜…
Safetyโ˜…โ˜…โ˜…โ˜…โ˜†
Confidencelow

Study Evidence

Study 1. Ashwagandha as an Adaptogenic Herb: A Comprehensive Review of Immunological and Neurological Effects.

observational

Jamnekar PP, Dehankar TJ, Bedre RV, Dharan BG, Agravat B, Agravat H ยท Cureus (2025)

Participants: N/A
Duration: N/A
Intervention: Standardized ashwagandha (Withania somnifera) extracts
Outcome: Sleep quality, stress-related biomarkers, mood parameters
Effect Size: N/A
Population: Adults with stress-related complaints (clinical trial participants)

Result:

PubMed: 41356880DOI: 10.7759/cureus.96183

Mechanism Graph

Modulation of hypothalamic-pituitary-adrenal (HPA) axis
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Inhibition of NF-ฮบB signaling
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Induction of Nrf2 activation
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Result: Reduced inflammation, oxidative stress, and anxiolytic effects leading to improved sleep

Limitations

  • โš Heterogeneity in preparation of extracts across studies
  • โš Small sample sizes and variability in endpoints
  • โš Possible funding-related biases

Frequently Asked Questions

What is the primary mechanism by which ashwagandha improves sleep?โ–ผ

Ashwagandha modulates the HPA axis, inhibits NF-ฮบB, induces Nrf2 activation, and affects GABAergic signaling, collectively reducing stress and promoting sleep.

Are the sleep benefits of ashwagandha supported by clinical trials?โ–ผ

Yes, clinical trials with standardized extracts have shown improvements in sleep quality along with reductions in stress biomarkers.

What are the main limitations of the research on ashwagandha for sleep?โ–ผ

Limitations include heterogeneity in extract preparation, small sample sizes, variability in endpoints, and potential funding biases.

Does ashwagandha have any neuroprotective effects relevant to sleep?โ–ผ

Preclinical studies show neuroprotective actions in models of Alzheimer's and Parkinson's disease, which may indirectly support sleep health.

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References

  1. 1.Jamnekar PP, Dehankar TJ, Bedre RV, Dharan BG, Agravat B, Agravat H. "Ashwagandha as an Adaptogenic Herb: A Comprehensive Review of Immunological and Neurological Effects.." Cureus, 2025. PMID: 41356880 DOI: 10.7759/cureus.96183
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.