Sleep More, Quarrel Less: Associations Between Day-to-Day Variations in Objective Sleep and Interpersonal Behavior...

Area of Science:

• Psychology
• Sleep Science
• Social Interaction

Background:

• Extensive research links sleep and irritable affect, but bidirectionality is unclear.
• Limited understanding exists regarding sleep's impact on interpersonal behaviors and perceptions.

Purpose of the Study:

• To investigate bidirectional within-person relationships between sleep quality and social interaction dynamics.
• To examine how sleep affects irritable affect, quarrelsome behavior, and perceptions of others.

Main Methods:

• Actigraphy measured sleep patterns in 50 participants over 20 or 40 days.
• Event-contingent recording captured daily social interactions, affect, and perceptions.
• Within-person analyses examined daily fluctuations.

Main Results:

• Worse sleep than usual predicted increased next-day irritable affect (anger, frustration).
• No direct link was found between sleep and quarrelsome behavior or perceptions.
• Poor sleep indirectly led to more quarrelsome behavior and less agreeable perceptions via increased irritability.

Conclusions:

• Sleep quality significantly influences emotional states, impacting social interactions.
• Poor sleep may impair interpersonal relationship quality through heightened irritability.
• Interventions targeting sleep could improve personal and professional relationships.