Association of Sleep Variables With Cognitive Performance and the Risk of Dementia in the Sleep and Dementia Consortium

Key Points

This research explores how different sleep characteristics relate to cognitive abilities and the potential risk of developing dementia.
Applied a data-driven approach to study clusters of sleep variables.
Examined their association with cognitive performance and dementia risk.
Analyzed data from the Sleep and Dementia Consortium.
Longer, more consolidated sleep correlated with better global cognition (p=0.039).
No significant relationship found between sleep composites and dementia risk.
Stronger slow oscillation-spindle coupling linked to enhanced cognitive performance.

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Examines the impact of sleep variables on cognition and dementia risk, suggesting new research paths.

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Yiallourou et al. (2026) studied this question.

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