This study examined, using a within-person design, how fluctuations in work-related affective rumination and problem-solving pondering are related to recovery and well-being (N = 171; 677 day-level data points over five consecutive work days). We hypothesized that trait self-regulation moderates the relationship between problem-solving during the evening and the state of being recovered at bedtime. We analyzed our data using a moderated multilevel mediation approach. The results showed that affective rumination during the evening was indirectly related to impaired well-being in the subsequent morning through its negative relationship with the state of being recovered at bedtime. Problem- solving was indirectly related to well-being in the subsequent morning through its relationship with the state of being recovered at bedtime. However, this indirect effect was moderated by trait self-regulation in a way that problem-solving pondering was positively related to the state of being recovered, and consequently, to improved well-being for employees higher in self-regulation, whereas it was negatively related to the state of being recovered, and consequently, to impaired well-being for those lower in self-regulation. These findings suggest that problem-solving pondering may be beneficial or unfavorable for recovery and well-being depending on the degree to which employees can regulate their cognitions and feelings.

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