Daily sleep in relation to subjective and physiological stress in an occupational context: Daily vigour as a mediator.

Studies on the stress-sleep relationship consistently demonstrate negative effects of stress on sleep. The reversed relation, however, has received less research attention. Also, field studies on physiological stress are scarce. The aim of this day-level diary study was to examine daily relationships between sleep quality and quantity, and subjective and physiological stress in an occupational context. Moreover, we examined daily vigour as an underlying mechanism of the sleep-stress relationship. Participants were 167 knowledge workers who filled in daily questionnaires measuring sleep quality and quantity, morning vigour and subjective afternoon stress on Tuesdays and Thursdays for 5 weeks. Physiological stress was assessed with cortisol decline from morning peak to evening, and with blood pressure in the afternoon. Multilevel path analysis results showed that better sleep quality and longer sleep hours predicted increased vigour the following morning, which in turn predicted lower subjective stress in the afternoon. Sleep quality and quantity were not related to physiological stress neither directly nor indirectly via morning vigour. On the basis of our results, sleep should be considered as a factor affecting vigour which in turn seems to lower stress.

The relationship between leadership support and employee sleep.

Sleep is critical to employees' health and well-being, safety, and performance at work. Sleep leadership refers to supervisor behaviors that aim to improve employees' sleep, such as showing concern for the quantity and quality of employees' sleep. Using a sample of 180 employees and their 91 supervisors working as full-time National Guard military service members, we examined the relationship of sleep leadership and family-supportive supervisor behaviors (FSSB) to employees' sleep. As outcomes we measured objective sleep quality and quantity using validated wrist actigraphy methods, as well as self-reported sleep hygiene, subjective sleep quantity, and subjective sleep quality (sleep disturbance and sleep-related impairment). As a novel contribution to the literature, we included both supervisors' self-reports and employees' reports of supervisors' engagement in sleep leadership and FSSB. Contradicting our hypotheses, our results show that higher employee ratings of FSSB were related to shorter objective sleep time. Regarding self-reported sleep outcomes, higher employees' ratings of sleep leadership were associated with less sleep disturbance and less sleep-related impairment among employees. Higher supervisors' self-ratings of FSSB, in turn, were related to better sleep hygiene and less sleep-related impairment among employees. Overall, our study demonstrates the importance of supportive supervisor behaviors for employees' sleep quality. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Enhancing daily well-being at work through lunchtime park walks and relaxation exercises: Recovery experiences as mediators.

Only few studies so far have examined recovery from work during workday breaks. In this intervention study, based on the effort-recovery model and the conservation of resources theory, we examined how to enhance recovery during lunch breaks. More specifically, we examined the within-person effects of lunchtime park walks and relaxation exercises on employees' levels of concentration, strain, and fatigue experienced at the end of a working day. We moreover tested whether detachment from work and enjoyment experienced during lunch breaks transmitted the effects of these activities to well-being outcomes. Participants in the park walk (n = 51) and relaxation (n = 46) groups were asked to complete a 15-min exercise during their lunch break on 10 consecutive working days. Afternoon well-being, lunchtime detachment, and lunchtime enjoyment were assessed twice a week before, during, and after the intervention, altogether for 5 weeks. Multilevel analysis results showed that park walks at lunchtime were related to better concentration and less fatigue in the afternoon through enjoyment. Relaxation exercises were related to better concentration in the afternoon via detachment. In addition, relaxation exercises were directly linked to lower levels of strain and fatigue in the afternoon. Our study suggests that on days on which employees engage in recovering activities during lunch breaks, they experience higher levels of well-being at the end of a working day. These results add to the theory-based knowledge on recovery during workday breaks and highlight the importance of breaks for organizational practices. (PsycINFO Database Record

Linking boundary crossing from work to nonwork to work-related rumination across time: A variable- and person-oriented approach.

[Correction Notice: An Erratum for this article was reported in Vol 22(4) of Journal of Occupational Health Psychology (see record 2017-05746-001). There were errors in two separate sections of the article. The final sentence preceding Hypothesis 4 in "The Present Study" section should read, "We did not hypothesize that the specific forms of work-related thoughts (i.e., affective rumination, problem-solving pondering, or lack of psychological detachment) would be differently associated with stability or changes in boundary crossing behavior." The fifth sentence in the second paragraph of the "Identifying Subgroups of Boundary Crossing Behavior Across Time" subsection of the "Results" section should read, "Group 5 (n = 162, 19%), characterized by stable low boundary crossing behavior across time (M = 1.37 for Time 1 and M = 1.34 for Time 2), and Group 6 (n = 154, 18%), characterized by stable high boundary crossing behavior (M = 4.54 for Time 1 and M = 4.60 for Time 2), were almost equally large in size."] This 1-year follow-up study (N = 841) investigated the relationship between boundary crossing behavior from work to nonwork and work-related rumination (i.e., affective rumination, problem-solving pondering, and lack of psychological detachment from work during off-job time). This relationship is important to examine as work-related rumination is a risk factor for poor recovery and ill-health over time. The aims were twofold: first, to examine these relationships in terms of temporal ordering, and, second, to show how individual differences regarding stability and change of boundaries from work to nonwork are reflected in work-related rumination across time. The structural equation modeling analyses lent support to the hypothesized normal causation model compared with the reversed causation and reciprocal models. However, only the cross-lagged relationship between high boundary crossing behavior at T1 and lack of psychological detachment at T2 was significant. Through latent profile analysis, 6 subgroups of boundary crossing behavior across time were identified. Over 70% of the employees belonged to the stable (low, moderate, high) and about one-third to the changing (mostly increasing) boundary crossing subgroups. Employees in the 2 stable (high and moderate) boundary crossing subgroups reported less psychological detachment and more problem-solving pondering during off-job time than did those in the low boundary crossing subgroup. Employees in the change groups reported simultaneous expected changes, especially in their problem-solving pondering. No effects on affective rumination were found. Thus frequent boundary crossing behavior from work to nonwork plays a different role regarding the various forms of work-related rumination during nonwork. (PsycINFO Database Record