Circadian Preference and sleep-Wake Regularity: Associations With Self-Report sleep Parameters in Daytime-Working Adults

This study examined how people's natural preference for mornings or evenings (chronotype) and the consistency of their sleep schedules affect their sleep quality and duration. Results showed that individuals who identify as "morning types" tend to sleep better, fall asleep faster, and have more consistent bedtimes and wake times. Regular wake times were especially linked to better sleep efficiency and reduced daytime tiredness. These findings highlight the importance of aligning sleep schedules with natural rhythms and maintaining consistency, especially for those with daytime work schedules. Stable sleep patterns support cognitive function, mood, and overall health by improving sleep quality and reducing fatigue.

To improve sleep and brain health, establish a consistent wake time, even on weekends, and consider shifting towards a "morning type" schedule. This aligns with findings that stability in sleep timing enhances sleep quality and efficiency. While the study's sample was limited to educated daytime workers, the results suggest that regular sleep schedules are beneficial across groups. Avoid significant deviations in sleep timing to promote better rest and cognitive function.