Sleep cycles

Sleep cycles has been studied in 1 paper since 2026: 1 observational study in people; 1 in the past year. The newest story, Nov 2, 2026: “Irregular sleep linked to higher cardiovascular risk”.

Exposure

1 paper studies it1 findingUpdated Nov 2, 2026

1 new paper in 30 daysSee all 1

“More sleep cycles were associated with lower atrial arrhythmia risk (0.72 [0.58–0.89]), independent of sleep duration, regularity, and timing (0.58 [0.44–0.77]).”

Sleep and Cardiometabolic Disease: A Wearable-Electronic Health Record Study in the US All of Us Research ProgramCirculation. Population health and outcomes2026doi:10.1161/circoutcomes.126.014445

1 lab

Humans1

What is sleep cycles linked with?

Studies link sleep cycles with 1 measure, most often atrial arrhythmia (1 study).

Atrial arrhythmia

downin humans1HR 0.72

1 study

Sleep cycles are associated with atrial arrhythmia in humans (Independent of sleep duration, regularity, and timing) (HR 0.72 (95% CI 0.58–0.89); independently adjusted HR 0.58 (95% CI 0.44–0.77)).
“More sleep cycles were associated with lower atrial arrhythmia risk (0.72 [0.58–0.89]), independent of sleep duration, regularity, and timing (0.58 [0.44–0.77]).”
HumansIndependent of sleep duration, regularity, and timingwearable-estimatedn = 7,199
Irregular sleep linked to higher cardiovascular risk
Circulation. Population health and outcomesNov 2, 2026

Latest

1 paper in 12 months

Circulation Population Health and OutcomesNov 2

Irregular sleep linked to higher cardiovascular risk

Each 29-minute increase in night-to-night sleep-duration variability was linked to higher cardiovascular risk, with a hazard ratio (a relative risk measure) of 1.24.Each 29-minute increase in night-to-night sleep-duration variability was linked to higher cardiovascular risk, with a hazard ratio (a relative risk measure) of 1.24.

Cohort · 10,362 peoplePopulations

Paper

Sleep cycles

What is sleep cycles linked with?

Latest

Irregular sleep linked to higher cardiovascular risk

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