The impact of emotional labor on sleep-related worry among pediatric nurses in Chinese public hospitals: the mediating role of self-regulatory fatigue.
Liu Y & Zhao X • Frontiers in public health • 2026
Self-regulatory fatigue statistically partially mediated the relationship between emotional labor and sleep-related worry among pediatric nurses, accounting for 26.9% of the total effect.
Key Findings
Results
Emotional labor showed a significant positive correlation with sleep-related worry among pediatric nurses.
Correlation coefficient r = 0.460, p < 0.01
Sample consisted of 604 pediatric nurses recruited from various medical institutions across China
Multicenter cross-sectional study design
Sleep-related worry was assessed using the Anxiety and Preoccupation about Sleep Questionnaire (APSQ)
Results
Emotional labor showed a significant positive correlation with self-regulatory fatigue among pediatric nurses.
Correlation coefficient r = 0.469, p < 0.01
Emotional labor was measured using the Emotional Labor Scale (ELS)
Self-regulatory fatigue was measured using the Self-regulatory Fatigue Scale (SRF-S)
This was among the strongest correlations observed in the study
Results
Self-regulatory fatigue was significantly positively correlated with sleep-related worry.
Correlation coefficient r = 0.394, p < 0.01
This correlation supported the plausibility of self-regulatory fatigue as a mediator
Both variables were assessed via self-reported questionnaires
Results
Self-regulatory fatigue partially mediated the relationship between emotional labor and sleep-related worry, accounting for 26.9% of the total effect.
Mediation analysis was conducted using PROCESS macro (Model 4) for SPSS 27.0
Based on 5,000 bootstrap samples
95% CI for the indirect effect: [0.0493, 0.1243]
The mediation was partial, meaning emotional labor also had a direct effect on sleep-related worry beyond its effect through self-regulatory fatigue
Background
Pediatric nurses were identified as a high-risk group for emotional labor due to their interactions with children who have difficulty expressing themselves and with anxious families.
Emotional labor in this context is associated with emotional numbness and burnout
These outcomes may negatively affect quality of care
The study notes that intrinsic associations among emotional labor, self-regulatory fatigue, and sleep-related worry in this population were previously unclear
What This Means
This research suggests that pediatric nurses — who must regularly manage their emotional expressions while caring for young patients and their worried families — are at heightened risk for sleep-related worry. The study surveyed 604 pediatric nurses across multiple hospitals in China and found that the more emotional labor nurses performed, the more likely they were to experience worry about sleep. This relationship was not only direct but also worked through a psychological mechanism called self-regulatory fatigue, which refers to the mental exhaustion that comes from constantly controlling one's thoughts, feelings, and behaviors.
The study found that emotional labor depleted nurses' self-regulatory resources, and this fatigue in turn contributed to sleep-related worry. This 'indirect path' through self-regulatory fatigue accounted for about 27% of the total relationship between emotional labor and sleep-related worry. In other words, part of why emotionally demanding work leads to sleep problems may be because it wears down the mental energy people need to manage stress and calm their minds before bed.
This research suggests that interventions targeting both the emotional demands placed on pediatric nurses and strategies to reduce or recover from self-regulatory fatigue could be important for improving nurses' sleep health and overall well-being. Recognizing that the psychological toll of emotional labor extends beyond the workday into nurses' nighttime rest has practical implications for hospital management policies, workplace support programs, and nurse wellness initiatives.
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Liu Y, Zhao X. (2026). The impact of emotional labor on sleep-related worry among pediatric nurses in Chinese public hospitals: the mediating role of self-regulatory fatigue.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1837829