BackgroundSleep restriction is associated with development of metabolic ill-health, and hormonal mechanisms may underlie these effects. The aim of this study was to determine the impact of short term sleep restriction on male health, particularly glucose metabolism, by examining adrenocorticotropic hormone (ACTH), cortisol, glucose, insulin, triglycerides, leptin, testosterone, and sex hormone binding globulin (SHBG).Methodology/Principal FindingsN = 14 healthy men (aged 27.4±3.8, BMI 23.5±2.9) underwent a laboratory-based sleep restriction protocol consisting of 2 baseline nights of 10 h time in bed (TIB) (B1, B2; 22:00–08:00), followed by 5 nights of 4 h TIB (SR1–SR5; 04:00–08:00) and a recovery night of 10 h TIB (R1; 22:00–08:00). Subjects were allowed to move freely inside the laboratory; no strenuous activity was permitted during the study. Food intake was controlled, with subjects consuming an average 2000 kcal/day. Blood was sampled through an indwelling catheter on B1 and SR5, at 09:00 (fasting) and then every 2 hours from 10:00–20:00. On SR5 relative to B1, glucose (F 1,168 = 25.3, p<0.001) and insulin (F 1,168 = 12.2, p<0.001) were increased, triglycerides (F 1,168 = 7.5, p = 0.007) fell and there was no significant change in fasting homeostatic model assessment (HOMA) determined insulin resistance (F 1,168 = 1.3, p = 0.18). Also, cortisol (F 1,168 = 10.2, p = 0.002) and leptin (F 1,168 = 10.7, p = 0.001) increased, sex hormone binding globulin (F 1,167 = 12.1, p<0.001) fell and there were no significant changes in ACTH (F 1,168 = 0.3, p = 0.59) or total testosterone (F 1,168 = 2.8, p = 0.089).Conclusions/SignificanceSleep restriction impaired glucose, but improved lipid metabolism. This was associated with an increase in afternoon cortisol, without significant changes in ACTH, suggesting enhanced adrenal reactivity. Increased cortisol and reduced sex hormone binding globulin (SHBG) are both consistent with development of insulin resistance, although hepatic insulin resistance calculated from fasting HOMA did not change significantly. Short term sleep curtailment leads to changes in glucose metabolism and adrenal reactivity, which when experienced repeatedly may increase the risk for type 2 diabetes.

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Study Objectives: (1) Present preliminary psychometrics for the Children's Report of Sleep Patterns (CRSP), a threemodule measure of Sleep Patterns, Sleep Hygiene, and Sleep Disturbance; and (2) explore whether the CRSP provides information about a child's sleep above and beyond parental report. Methods: A multi-method, multi-reporter approach was used to validate the CRSP with 456 children aged 8-12 years (inclusive). Participants were recruited from pediatricians' offi ces, sleep clinics/laboratories, children's hospitals, schools, and the general population. Participants completed measures of sleep habits, sleep hygiene, anxiety, and sleepiness, with actigraphy and polysomnography used to provide objective measures of child sleep. Results: The CRSP demonstrated good reliability and validity. Differences in sleep hygiene and sleep disturbances were found for children presenting to a sleep clinic/laboratory (vs. community population); for younger children (vs. older children); and for children who slept less than 8 hours or had a sleep onset later than 22:00 on actigraphy. Further, signifi cant associations were found between the CRSP and child-reported anxiety or sleepiness. Notably, approximately 40% of parents were not aware of child reported diffi culties with sleep onset latency, night wakings, or poor sleep quality. Conclusions:The three modules of the CRSP can be used together or independently, providing a reliable and valid selfreport measure of sleep patterns, sleep hygiene, and sleep disturbances for children ages 8-12 years. Children not only provide valid information about their sleep, but may provide information that would not be otherwise captured in both clinical and research settings if relying solely on parental report. keywords: Children, sleep, sleep hygiene, sleep patterns, sleep disturbances, validation, measurement, self-report Citation: Meltzer LJ; Avis KT; Biggs S; Reynolds AC; Crabtree VM; Bevans KB. The Children's Report of Sleep Patterns (CRSP): a self-report measure of sleep for school-aged children. J Clin Sleep Med 2013;9(3):235-245.

The reported barriers to sleep, particularly using technology for social purposes, will require innovative and specialized strategies if they are to be overcome.

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Purpose In the highly gendered academic sector, womens’ high participation rates have not translated into equal career progression with men. Existing literature suggests that early career publication success is a good indicator of long-term publication success. This research is intended to provide a better understanding of whether the notions of success espoused by neo-liberal universities align with the subjective measures of what constitutes academic success for women ECRs (early career researchers). Design/methodology/approach The study examines the perceptions of nine successful women ECRs at an Australian university. It uses collaborative autoethnography with thematic analysis of participants’ self-reflective narratives on being a successful ECR. Findings Five themes were identified. One focussed on objective academic success, which included publications, grants and citations. The other four themes – living a balanced life, making a difference, labour of love and freedom and flexibility – offered more subjective views of success. These included: research making a contribution to society, undertaking research they are passionate about, having autonomy in their role and achieving work-life balance. Practical implications The findings demonstrate that women define success in broader terms than neo-liberal universities, and future studies should consider these divergent definitions. Universities committed to equality should understand differences in how women may approach career progress and incorporate this into support processes and in alignment of individual and university goals. Originality/value This research offers unique insights into the experience of post-doctoral employment for women in the academic environment and the factors influencing their success in this early career phase.

At a Glance Commentary (191/200) Scientific Knowledge on the SubjectRecent studies that have assessed obstructive sleep apnea (OSA) over several consecutive nights indicate that OSA severity can vary markedly from night-to-night which may have important implications for diagnosis, management, and prevalence estimates. Prior to recent advances in non-invasive home sleep monitoring technology, it was not feasible to examine night-to-night variation in OSA severity and its potential impact on diagnostic classification and prevalence estimates over extended periods in the home setting at scale.