An analysis of studies from 11 countries shows significant correlations between personality traits and sleep behaviors.

Summary:
A recent systematic review conducted by Koa Health, in partnership with FWD Group, analyzed 18 studies from the past decade to explore the connection between personality traits and sleep patterns. The research, encompassing over 58,000 participants across 11 countries, found significant associations between sleep quality and the “Big Five” personality traits—openness, conscientiousness, extraversion, agreeableness, and neuroticism. Key findings indicate that higher neuroticism is linked to poorer sleep, while conscientious individuals are more likely to be early risers with better sleep quality. These insights highlight the potential for personalized sleep interventions to enhance outcomes by aligning with individual personality profiles.

Key Takeaways:

Personality-Driven Sleep Patterns: The review found that individuals with higher neuroticism experience poorer sleep quality, while conscientious individuals are more likely to wake early and sleep better.
Personalized Interventions: The findings suggest that digital sleep tools, particularly those using cognitive behavioral therapy, may be more effective when tailored to users’ personality traits.
Broader Impact on Health: Understanding how personality influences sleep can lead to more personalized health strategies, potentially improving both mental and physical well-being.

A systematic review spanning 11 countries has uncovered significant links between personality traits and sleep patterns, shedding light on how individual differences influence sleep quality and routines.

The review conducted by Koa Health, in partnership with FWD Group, a pan-Asian life and health insurance company, was published in Nature of Science and Sleep.

Researchers analyzed 18 studies published in the last decade, encompassing data from over 58,000 participants across 11 countries, including the United States, Germany, China, and the United Kingdom. The review demonstrated notable associations between sleep quality and the “Big Five” personality traits.

The traits are:

Openness to Experience: Willingness to embrace new ideas and imagination.
Conscientiousness: Degree of organization and dependability.
Extraversion: Level of sociability and enthusiasm in social situations.
Agreeableness: Inclination toward compassion and trust in others.
Neuroticism: Tendency to experience negative emotions.

Key findings of the review include:

A link between neuroticism and poor sleep: All studies reviewed linked higher neuroticism scores with poorer sleep quality.
A correlation between conscientiousness and early risers: A moderate correlation indicated that individuals with higher conscientiousness tend to be “early birds” and experience better sleep quality.
Other sleep patterns: Additional associations were identified between personality traits and sleep duration, insomnia severity, and daytime sleepiness.

The findings open the way for personalized interventions which should result in better outcomes, adherence, and impact, according to Oliver Harrison, CEO and founder of Koa Health and mental health advocate.

“Our findings suggest that digital tools, particularly those leveraging cognitive behavioral therapy for insomnia, are more effective when personalized to match users’ personality traits,” Harrison says in a release. “This is an important insight given the profound two-way relationship between mental health and sleep. At Koa Health, we believe that technology can transform mental health care. In building our technology, we believe in personalized care pathways that meet the unique needs of each user, start at prevention, and change lives for the better.”

Sarah Salvilla, group chief health officer at FWD Group, adds in a release, “Sleep is fundamental to our overall health, impacting both physical and mental well-being. Recognizing that sleep patterns are unique to each individual, the systematic review provides valuable insights that help us better understand our customers, enabling us to offer more personalized services and care.”