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Meditation-based interventions improve subjective sleep quality in older adults with mild cognitive impairment

A systematic review and meta-analysis of 7 studies (n=434) found that meditation-based interventions significantly improved sleep quality in adults aged ≥55 with mild cognitive impairment. The pooled effect size was large (Hedges' g = -0.75, 95% CI -1.23 to -0.28) with substantial heterogeneity (I² = 77.9%). Five of seven studies showed significant improvements in subjective sleep quality, and one actigraphy-based study reported reduced daytime napping.

Last updated: Aug 13, 2026•0 RCTs•1 Meta-analyses•📖 Read as article →

Evidence Score

Evidence Score49/100
Human RCT☆☆☆☆☆
Meta-analysis★★★☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. The effects of meditation-based interventions on sleep quality among adults aged ≥ 55 with mild cognitive impairment: A systematic review and meta-analysis.

observational

Lim J, Perez A · Geriatric nursing (New York, N.Y.) (2026)

Participants: N/A
Duration: 4-12 weeks
Intervention: Meditation-based interventions (mindfulness, mantra, sound meditation, hybrid programs) lasting 4-12 weeks
Outcome: Sleep quality measured by validated sleep measures, primarily PSQI (Pittsburgh Sleep Quality Index)
Effect Size: Hedges' g = -0.75 (95% CI -1.23 to -0.28)
Population: Adults aged ≥55 years with mild cognitive impairment (MCI)

Result:

PubMed: 42574777DOI: 10.1016/j.gerinurse.2026.104213

Mechanism Graph

Meditation reduces stress and anxiety, which are common contributors to sleep disturbances
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Improved emotional regulation and reduced hyperarousal may facilitate sleep onset and maintenance
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Enhanced mindfulness may improve sleep-related behaviors and reduce rumination
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Result: Improved subjective sleep quality and psychological well-being

Limitations

  • ⚠Substantial heterogeneity (I² = 77.9%) across studies, indicating variability in interventions and populations
  • ⚠Limited number of studies (n=7) and small sample sizes, with only one study using objective actigraphy
  • ⚠Potential risk of bias in included studies, and lack of standardized protocols across interventions

Frequently Asked Questions

What is the effect size of meditation-based interventions on sleep quality in older adults with MCI?▼

The meta-analysis found a large effect size (Hedges' g = -0.75) indicating significant improvement in sleep quality, though with substantial heterogeneity.

How long do meditation-based interventions need to be to improve sleep?▼

Interventions in the reviewed studies lasted between 4 and 12 weeks, and most showed significant improvements in subjective sleep quality.

Are meditation-based interventions safe for older adults with MCI?▼

The review suggests they are promising non-pharmacological strategies, but caution is warranted due to limited and heterogeneous evidence. No adverse effects were reported in the abstract.

What types of meditation were included in the review?▼

The review included mindfulness, mantra, sound meditation, and hybrid programs.

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References

  1. 1.Lim J, Perez A. "The effects of meditation-based interventions on sleep quality among adults aged ≥ 55 with mild cognitive impairment: A systematic review and meta-analysis.." Geriatric nursing (New York, N.Y.), 2026. PMID: 42574777 DOI: 10.1016/j.gerinurse.2026.104213
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.