High Heart Rate Variability Buffers the Effect of Attachment Insecurity on Sleep Quality

Abstract

Objective Sleep quality is an important health-protective factor. Psychosocial factors, including attachment orientation, may be valuable for understanding who is at risk of poor sleep quality and associated adverse health outcomes. High attachment anxiety is reliably associated with adverse health outcomes, while high attachment avoidance is associated with adverse health outcomes when co-occurring with poor self-regulatory capacity, indexed by heart rate variability (HRV). We examined the associations between attachment anxiety, attachment avoidance, HRV, and sleep quality. Methods Using longitudinal data from a sample of 171 older adults measured four times over one year (M = 66.18 years old; 67.83% women), we separated the between-person variance (which we call “trait”) and within-person variance (which we call “state”) for attachment anxiety, attachment avoidance, and HRV (via the root mean square of successive differences). Sleep quality was measured with the Pittsburgh Sleep Quality Index. Results Higher trait attachment anxiety was associated with poorer global sleep quality (B = 0.22, p = .005). Higher state attachment avoidance was associated with poorer sleep quality (B = -0.13, p = .01), except for those with higher trait HRV. Higher state attachment anxiety was associated with poorer sleep quality (B = -0.15, p = .002), except for those with higher or mean trait HRV. Higher trait attachment anxiety was associated with poorer sleep quality (B = -0.31, p = .02), except for those with higher trait HRV. Conclusions High trait HRV mitigated the adverse effects of attachment insecurity on sleep quality. Our results suggest that people with high trait HRV had greater self-regulation capacity, which may be able them to enact emotion regulation strategies effectively.

Exploring the Interplay Between Stress, Sleep, and Health: A Special Issue Commemorating the Contributions of Dr. Martica Hall

“…Several articles also highlight the dynamic nature of sleep during critical periods across the life span ( 9) and multidimensional conceptualizations of sleep health (10), ideas and methodologies championed by Tica. We are also quite certain that Tica would have applauded the focus on social determinants of sleep and sleep health disparities (11)(12)(13)(14) and the links between sleep and heart rate variability (15,16). Collectively, these articles fill in critical pieces of the theoretical framework pioneered by Tica, beginning with her dissertation work and developed throughout her illustrious career.…”