Individual Differences in Sleep Quality: Exploring the Impact of Temperament on Sleep Through Anxiety and Depression

Associations between objective sleep duration, sleep duration variability, and sleep onset with emotion regulation and internalizing symptoms in adolescents: findings from the ABCD® study.

Investigation of cross-sectional associations between objective sleep features (sleep duration, duration variability, and onset time) and mental health outcomes in 1371 U.S. adolescents found objective sleep features were differentially associated with mental health outcomes.

Quality beats quantity: Predicting affective states by different sleep indices in psychiatric patients with suicidal thoughts and behavior.

Cumulative SQ, indexed by a three-night pile-up measure, consistently outperformed raw SQ and alternative indices in predicting higher PA and lower NA at both within- and between-person levels, and highlights cumulative sleep quality as a clinically relevant marker of short-term affective vulnerability.

Circadian rhythm disruption and multiple sclerosis: The role of affective symptoms and temperamental traits.

Systematic assessment of mood and circadian rhythms may offer a more comprehensive framework for identifying clinically relevant chronobiological disruption in patients with multiple sclerosis.

Examination of sleep disturbance, anxiety sensitivity, and Examination of sleep disturbance, anxiety sensitivity, and depression in an undergraduate sample depression in an undergraduate sample

Poor sleep quality is associated with symptom severity in schizophrenia, independent of chronotype and BDNF Val66Met genetic variant.

Poor sleep quality is associated with symptom severity in schizophrenia, including later illness onset, independent of chronotype or BDNF Val66Met variant.

Stress and Sleep Dynamics in Young Adults with Psychotic-Like Experiences Across Daily Life

Abstract Background and hypothesis Psychotic-like experiences (PLEs) confer increased risk for adverse mental health outcomes. Sleep disturbances are associated with PLEs, yet evidence largely relies on retrospective assessments and average sleep parameters, limiting insight into daily-life dynamics. Moreover, the roles of stress exposure in sleep–PLEs associations remain insufficiently understood. This study aimed to address these gaps by examining sleep characteristics, momentary stress, and childhood trauma in relation to PLEs using experience sampling. We hypothesized that individuals with PLEs show poorer and more variable sleep, bidirectional sleep–PLEs associations, stronger stress-related sleep disturbances, and trauma-related alterations in sleep regulation. Study Design Altogether, 99 individuals with PLEs and 102 controls completed the experience sampling across 7 consecutive days. Study Results Individuals with PLEs reported poorer average sleep quality, shorter sleep duration, and greater variability in sleep quality, although differences in sleep quality and its variability were attenuated after adjustment for negative affect. Within the PLEs group, sleep quality, but not sleep duration, showed robust bidirectional within-person associations with PLEs. Daily stress fluctuations were not associated with next-morning sleep, whereas higher between-person stress exposure was related to poorer average sleep quality, with no moderation by PLEs group status. Childhood trauma was not significantly associated with sleep outcomes. Conclusions Reduced sleep duration might be a stable feature of PLEs independent of negative affect, while sleep quality is dynamically linked to momentary PLEs. Sleep disturbances in individuals with PLEs seem more closely related to symptom dynamics than to momentary stress and distal developmental risk factors.