SynthesisThe Gerontologist2026
Nonpharmacological interventions to improve the sleep of informal caregivers of people with dementia: a systematic review and meta-analysis.
Synthesis in The Gerontologist, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
BACKGROUND AND
objectivesSleep problems are common among informal caregivers of people with dementia. Although various nonpharmacological interventions developed to improve caregivers' sleep, comprehensive syntheses of their categories and effectiveness are lacking. This study synthesizes the types of nonpharmacological interventions used for this population and systematically evaluates their effects on sleep outcomes. RESEARCH DESIGN AND
methodsSix databases (Medline, Scopus, Web of Science, Embase, PsycINFO, and CINAHL) were systematically searched for studies evaluating nonpharmacological interventions and reporting sleep outcomes in informal dementia caregivers. Two researchers independently selected studies and assessed quality.
resultsOf 4,147 records identified, 30 studies were synthesized and 22 meta-analyzed. Seven intervention categories were identified: multicomponent behavioral sleep interventions, sensory-based interventions, physical exercise, institutional respite care, cranial electrical stimulation, caregiver education, and nighttime monitoring systems. Pooled analyses indicated nonpharmacological interventions significantly improved overall sleep quality (SMD = -0.60, 95% CI = -1.12 to -0.08) and insomnia (SMD = -0.43, 95% CI = -0.83 to -0.04). Multicomponent behavioral interventions specifically improved overall sleep quality (SMD = -0.36, 95% CI = -0.61 to -0.12). Research on other specific sleep parameters remains limited. DISCUSSION AND IMPLICATIONS: Nonpharmacological interventions may effectively improve overall sleep quality and insomnia among informal caregivers of people with dementia. However, significant research gaps persist regarding the effectiveness of these interventions in improving specific sleep parameters. Since heterogeneity among the included studies remains high, caution is warranted when interpreting the results in practice. Future large-scale and methodologically rigorous trials are needed.
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