Is Self-compassion Associated with Sleep Quality? A Meta-analysis

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ORIGINAL PAPER

Is Self-compassion Associated with Sleep Quality? A Meta-analysis Lydia Brown 1,2

&

Emma E. Houston 1 & Hermioni L. Amonoo 3,4 & Christina Bryant 1

# Springer Science+Business Media, LLC, part of Springer Nature 2020

Abstract Objectives Prior research has found that self-compassion is associated with a range of health and well-being outcomes, but the specific association between self-compassion and sleep quality remains poorly understood. The purpose of this study is to respond to this issue through conducting a meta-analysis to quantify the relationship between self-compassion and sleep quality. Methods Systematic literature searches were conducted using the PsychInfo, Embase and Medline electronic databases to identify studies reporting on the relationship between self-compassion and sleep quality. Random effects meta-analysis was used to synthesise results. Results Seventeen independent studies from 15 publications met criteria for inclusion in this review. All studies included selfreported sleep quality measures. No study reported objective measurements of sleep quality. Meta-analysis revealed evidence of a significant association whereby those with higher self-compassion reported fewer sleep problems r = − 0.32, 95%CI [− .36, − .28]. In a subgroup (n = 6) of studies that delineated the positively and negatively worded items of the self-compassion scale (termed positive self-compassion and self-coldness, respectively), self-coldness was more strongly associated with poor sleep quality r = 0.36, 95%CI [.18, .52] than positive self-compassion r = − 0.15, 95%CI [− .24, − .05]. Conclusions Our meta-analysis found that self-compassion is associated with self-reported sleep quality. Future research is needed to investigate directions of causality and to consider if self-compassion-based interventions might be effective in improving sleep quality. Keywords Self-compassion . Sleep . Meta-analysis . Well-being . Self-care

Up to 50% of people experience persistent sleep disturbances, including difficulties initiating and maintaining sleep (LeBlanc et al. 2007; Walsh and Üstün 1999). Sleep disturbances are associated with a range of poor health outcomes, including increased systemic inflammation (Irwin et al. 2016), cognitive impairment (Banks and Dinges 2007), obesity (Cappuccio et al. 2008) and increased risk of death (Parthasarathy et al.

* Lydia Brown [email protected] 1

Melbourne School of Psychological Sciences, University of Melbourne, 12th Floor, Redmond Barry Building, Parkville, VIC, Australia

2

North Eastern Rehabilitation Centre, Healthscope Hospitals, Melbourne, VIC, Australia

3

Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, Boston, MA, USA

4

Department of Psychiatry, Brigham and Women’s Hospital, Boston, MA, USA

2015). Poor sleep quality also compromises psychological health, impacting daytime functioning (Morin and Benca 2012) and increasing the risk of developing mental disorders including depression, anxiety and substance use disor