Development of the Couples' Sleep Conflict Scale: A new tool to assess conflict around sleep in romantic relationships.

Objective: The purpose of this study was to evaluate the psychometric properties of the Couples' Sleep Conflict Scale, a new measure designed to identify the extent of conflict around sleep in romantic relationships.

Methods: Data from an individual sample (N = 158) and dyadic sample (N = 143 mixed-gender couples) in romantic relationships were used to examine the psychometric properties of the Couples' Sleep Conflict Scale, including internal consistency, convergent and divergent validity, and whether the factor structure differed between couples with concordant and discordant chronotypes.

Results: Results revealed that the Couples' Sleep Conflict Scale fit a 1-factor solution of 5 items, a summed or mean score can be used, and that it is reliable for both men and women.

Yours, mine, or ours? Dyadic sleep hygiene and associations with sleep quality, emotional distress, and conflict frequency in mixed-gender, bed-sharing couples.

Although prior research demonstrates the interdependence of sleep quality within couples (i.e., the sleep of one partner affects the sleep of the other), little is known about the degree to which couples' sleep hygiene behaviours are concordant or discordant, and if one's own sleep hygiene or their report of their partners' sleep hygiene is related to worse relational, psychological, and sleep outcomes.