Objectives Children in families of low socioeconomic status (SES) have been found to have poor sleep, yet the reasons for this finding are unclear. Two possible mediators, presleep worries and home environment conditions, were investigated as indirect pathways between SES and children’s sleep. Participants/Methods The participants consisted of 271 children (M (age) = 11.33 years; standard deviation (SD) = 7.74 months) from families varying in SES as indexed by the income-to-needs ratio. Sleep was assessed with actigraphy (sleep minutes, night waking duration, and variability in sleep schedule) and child self-reported sleep/wake problems (e.g., oversleeping and trouble falling asleep) and sleepiness (e.g., sleeping in class and falling asleep while doing homework). Presleep worries and home environment conditions were assessed with questionnaires. Results Lower SES was associated with more subjective sleep/wake problems and daytime sleepiness, and increased exposure to disruptive sleep conditions and greater presleep worries were mediators of these associations. In addition, environmental conditions served as an intervening variable linking SES to variability in an actigraphy-derived sleep schedule, and, similarly, presleep worry was an intervening variable linking SES to actigraphy-based night waking duration. Across sleep parameters, the model explained 5–29% of variance. Conclusions Sleep environment and psychological factors are associated with socioeconomic disparities, which affect children’s sleep.

Relations between children's sleep and cognitive functioning were examined over 2 years, and race and socioeconomic status were assessed as moderators of effects. Third-grade African American and European American children (N = 166; M = 8.72 years) participated at Time 1 and again 2 years later (N = 132). At both Time 1 and Time 2, sleep was examined via self-report and actigraphy. Children were administered selected tests from the Woodcock-Johnson III Tests of Cognitive Abilities, and Stanford Achievement Test scores were obtained from schools. Children's sleep was related to intellectual ability and academic achievement. Results build substantially on an emerging literature supportive of the importance of sleep in children.

Child sleep and adjustment research with community samples is on the rise with a recognized need of explicating this association. We examined reciprocal relations between children's sleep and their internalizing and externalizing symptoms using 3 waves of data spanning 5 years. Participants included 176 children at Time 1 (M = 8.68 years; 69% European American, 31% African American), 141 children at Time 2 (M = 10.70 years), and 113 children at Time 3 (M = 13.60 years). Children were from a wide range of socioeconomic backgrounds. Sleep was measured subjectively via self-reports and objectively via actigraphy and adjustment was assessed with parent and child reports. Cross-lagged panel models indicated that reduced sleep duration and worse sleep quality predicted greater depression, anxiety, and externalizing symptoms over time. To a lesser extent but supportive of reciprocal relations, adjustment predicted changes in sleep. Findings illustrate the reciprocal nature of relations between sleep and adjustment difficulties in otherwise typically developing youth.

Relations were examined between children's sleep and their externalizing and internalizing symptoms. Longitudinal relations were examined when children were in 3rd (T1) and 5th (T2) grades, and cross-sectional relations were assessed at T2. Participants included 176 children at T1 (M = 8.68 years) and 141 children at T2 (M = 10.70 years). Sleep was examined via subjective reports and actigraphy. Children reported on anxiety, self-esteem, and depression symptoms, and parents reported on children's externalizing and internalizing symptoms. Cross-sectionally and longitudinally, sleep problems were associated with worse adjustment outcomes; African American children or those from lower socioeconomic status homes were at particular risk. Findings highlight the importance of adequate sleep for children's optimal development, especially in the context of ecological risk.

We examined reciprocal relations between parental marital conflict and children's sleep disruptions over two years. The roles of ethnicity (African American and European American) and socioeconomic status were tested as moderators of the examined relations. A community sample of 176 school-age children (M age = 8.68 at T1) and their parents participated at T1 and T2 with a 2-year interval between waves. Mothers, fathers, and children reported on parental marital conflict, and children's sleep was measured via actigraphy and self-reports. Latent variable modeling indicated that T1 marital conflict predicted increases in children's sleep disruptions longitudinally; results were more pronounced for African American children and those from lower SES homes. Further, children's sleep disruptions at T1 predicted increases in marital conflict over time. Results demonstrate the importance of reciprocal relations between a prevalent familial stressor and a fundamental facet of children's health, especially when considering the sociocultural milieu.