{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T04:06:58Z","timestamp":1789963618909,"version":"4.0.1"},"reference-count":36,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T00:00:00Z","timestamp":1789862400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T00:00:00Z","timestamp":1789862400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Sleep Research"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Despite sleep's multidimensional nature, previous research has focused on correlates of individual sleep dimensions. This study aimed to characterise young children's nighttime sleep profiles based on duration, timing, latency and quality, and to examine potential correlates. Parents of 320 children aged 1\u20135\u2009years across Canada completed an online questionnaire on children's nighttime sleep (duration, timing, latency, quality) and potential correlates, including child demographics and behaviours, parental demographics, bedtime routine frequency, parent\u2013child sleep interaction (preschoolers aged 3\u20135\u2009years only), parental stress and sleep environment. Latent profile analysis classified sleep profiles using age\u2010adjusted sleep dimensions. T\u2010tests and logistic regressions were performed, weighted for classification probabilities. For results, two profiles emerged:\n                    <jats:italic>Sleepy Koalas<\/jats:italic>\n                    (59%) and\n                    <jats:italic>Restless Racoons<\/jats:italic>\n                    (41%), with the Restless Racoons having significantly shorter sleep duration, later sleep patterns, longer sleep onset latency and poorer sleep quality compared to the Sleepy Koalas. Children from households with income above $100,000 were twice as likely to belong to the Sleepy Koalas group (OR\u2009=\u20092.05, 95% CI: 1.26, 3.35), compared to those from lower\u2010income households. In preschoolers, when parent\u2013child sleep interactions were added to the model, each one\u2010unit increase in problematic interactions was associated with 21% lower likelihood of Sleepy Koalas membership (OR\u2009=\u20090.79, 95% CI: 0.72, 0.86), with differences across the interquartile range corresponding to up to a 95% reduction in odds. In conclusion, there may be sleep health disparities in young children across household income groups. Fostering high\u2010quality parent\u2013child sleep interactions may be important for promoting healthier sleep profiles in preschoolers.\n                  <\/jats:p>","DOI":"10.1111\/jsr.70454","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T03:51:06Z","timestamp":1789962666000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Correlates of Multidimensional Sleep Profiles of Young Children"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6873-7410","authenticated-orcid":false,"given":"Zhiguang","family":"Zhang","sequence":"first","affiliation":[{"name":"Faculty of Kinesiology, Sport, and Recreation University of Alberta  Edmonton Canada"},{"name":"School of Education Faculty of the Arts, Society and Business University of Wollongong  Wollongong Australia"},{"name":"Australian Research Council Centre of Excellence for the Digital Child  Brisbane Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0571-390X","authenticated-orcid":false,"given":"Madison","family":"Boyd","sequence":"additional","affiliation":[{"name":"Faculty of Kinesiology, Sport, and Recreation University of Alberta  Edmonton Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3009-3282","authenticated-orcid":false,"given":"Valerie","family":"Carson","sequence":"additional","affiliation":[{"name":"Faculty of Kinesiology, Sport, and Recreation University of Alberta  Edmonton Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,20]]},"reference":[{"issue":"11","key":"e_1_2_13_2_1","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.5664\/jcsm.3156","article-title":"The Parent\u2010Child Sleep Interactions Scale (PSIS) for Preschoolers: Factor Structure and Initial Psychometric Properties","volume":"9","author":"Alfano C. 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