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There is emerging evidence for links between relationship factors and sleep quality. Existing research linking attachment orientation to sleep quality has yielded inconsistent effects, has focused on younger samples, and has not considered underlying mechanisms of action. This research addressed these gaps in two studies that investigated the links between attachment orientation and sleep quality in both younger/middle-aged (Study 1) and older (Study 2) adult couples using Actor–Partner Interdependence Models. We also tested mediating effects of relationship-specific security and negative affect. In both studies, participants completed surveys assessing their attachment orientation, sleep quality, and the proposed mediators. Both studies revealed that relationship-specific security and negative affect mediated the negative association between insecure attachment and one’s own sleep quality. This research enhances our understanding of how attachment orientation affects sleep quality, provides a foundation for future research on relationship influences on sleep, and suggests avenues for improving sleep quality. 

Shared positive activities, such as engaging conversations and interactive play, enhance relationships and buffer the consequences of negative interactions. The current research tested whether affectionate touch (a prime target for intervention) encourages people to prioritize other shared positive activities and to view shared activities more positively. In a pre-registered dyadic diary study of married couples (Study 1), greater affectionate touch on one day predicted increases in shared positive activities concurrently and prospectively. In a pre-registered dyadic experiment (Study 2), a brief affectionate touch intervention increased self-reported (but not observer-rated) shared positive activities immediately and increased shared positive activities over the following week for people who do not typically engage in such activities. Participants assigned to touch (particularly those low in attachment anxiety) also perceived their partners more positively during shared activities. These results suggest that touch may facilitate positive relationship experiences broadly and supports a theoretical model of affectionate touch. 

Although touch is common in romantic relationships and is generally beneficial, people differ in the extent to which they desire to give and receive touch. The current research identified individual and relationship characteristics that predict overall desire for touch and unique desire for overtly affectionate versus indirectly affectionate forms of touch. In both a sample of dating, engaged, and married individuals (Study 1) and a dyadic sample of married couples (Study 2), the strongest predictors of overall desire for touch were sex (being female) and high relationship quality (actor and partner). Attachment avoidance also predicted lower desire for touch overall (Study 1), and actor and partner attachment avoidance predicted lower desire for indirectly affectionate touch, in particular (Study 2). Finally, greater psychological distress predicted greater desire for indirectly affectionate touch in both studies. This novel descriptive information about desire for touch provides a foundation for future intervention work.