Cohort Studyhigh evidence
How many nights are needed? The short-term stability of intraindividual variability in sleep parameters derived from accelerometry data in a cohort of normal sleepers.
Sleep·June 15, 2026·PMID 41761769
Why it mattersSleep variability is increasingly recognized as clinically important, but standard monitoring durations may be too short to capture it reliably. This study provides evidence-based guidance for designing sleep studies and interpreting accelerometry data in both research and clinical contexts.
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