{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T05:14:24Z","timestamp":1783574064894,"version":"3.55.0"},"reference-count":32,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T00:00:00Z","timestamp":1782691200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clocks &amp; Sleep"],"abstract":"<jats:p>Internalized weight bias\u2014the self-directed endorsement of weight-related stereotypes\u2014has emerged as a psychologically potent correlate of health outcomes in individuals with overweight and obesity, yet its relationship with sleep remains largely unexplored. In a cross-sectional manner, 495 Greek adults with a history of overweight\/obesity were assessed regarding sleep quality and duration, internalized weight bias (Modified Weight Bias Internalization Scale; WBIS-M), and expressed anti-fat attitudes (Anti-Fat Attitudes Questionnaire, AFA: Dislike, Fear of Fat, Willpower). Insomnia prevalence, assessed with the Athens Insomnia Scale (AIS), was high at 57.6%\u2014nearly doubling across ascending WBIS-M tertiles (39.9% to 73.1%). In hierarchical linear regression models, AIS score remained independently associated with WBIS-M after adjustment for depression, anxiety, BMI, and a comprehensive range of sociodemographic and clinical covariates (B = 0.058; 95% CI: 0.036\u20130.079; p &lt; 0.001), with the fully adjusted model explaining 58.5% of total variance in WBIS-M. AFA subscales did not remain significant in the model post-full adjustment, and sleep duration failed to show independent association with either bias dimensions. The sleep\u2013weight bias association was therefore specific to the internalized dimension and to sleep quality, rather than quantity. These findings highlight a clinically relevant and dimension-specific link between insomnia symptoms and internalized weight stigma, and suggest that routine sleep assessment may be warranted in individuals with a history of overweight or obesity presenting with elevated internalized weight bias\u2014and vice versa.<\/jats:p>","DOI":"10.3390\/clockssleep8030040","type":"journal-article","created":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T00:55:11Z","timestamp":1782780911000},"page":"40","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Sleep Quality, Not Sleep Duration, Is Independently Associated with Internalized Weight Bias: The Greek Lifestyle and Obesity-Related Bias Survey"],"prefix":"10.3390","volume":"8","author":[{"given":"Athina","family":"Tzifopoulou","sequence":"first","affiliation":[{"name":"Department of Nutritional Science and Dietetics, School of Health Sciences, University of the Peloponnese, Antikalamos, GR-24150 Kalamata, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Despoina","family":"Dragataki","sequence":"additional","affiliation":[{"name":"Department of Nutritional Science and Dietetics, School of Health Sciences, University of the Peloponnese, Antikalamos, GR-24150 Kalamata, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4167-6595","authenticated-orcid":false,"given":"Maria G.","family":"Grammatikopoulou","sequence":"additional","affiliation":[{"name":"Immunonutrition and Clinical Nutrition Unit, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41223 Larissa, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7864-5349","authenticated-orcid":false,"given":"Eleni C.","family":"Pardali","sequence":"additional","affiliation":[{"name":"Immunonutrition and Clinical Nutrition Unit, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41223 Larissa, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8469-8068","authenticated-orcid":false,"given":"Maria","family":"Dimitriou","sequence":"additional","affiliation":[{"name":"Department of Nutritional Science and Dietetics, School of Health Sciences, University of the Peloponnese, Antikalamos, GR-24150 Kalamata, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4868-9620","authenticated-orcid":false,"given":"Dimitrios","family":"Poulimeneas","sequence":"additional","affiliation":[{"name":"Department of Nutritional Science and Dietetics, School of Health Sciences, University of the Peloponnese, Antikalamos, GR-24150 Kalamata, Greece"},{"name":"Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Kallithea, GR-17671 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"585","DOI":"10.1093\/sleep\/33.5.585","article-title":"Sleep duration and all-cause mortality: A systematic review and meta-analysis of prospective studies","volume":"33","author":"Cappuccio","year":"2010","journal-title":"Sleep"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"246","DOI":"10.1016\/j.sleep.2016.08.006","article-title":"Short sleep duration and health outcomes: A systematic review, meta-analysis, and meta-regression","volume":"32","author":"Itani","year":"2017","journal-title":"Sleep Med."},{"key":"ref_3","first-page":"e367","article-title":"Sleep Duration and Quality: Impact on Lifestyle Behaviors and Cardiometabolic Health: A Scientific Statement from the American Heart Association","volume":"134","author":"Grandner","year":"2016","journal-title":"Circulation"},{"key":"ref_4","first-page":"96","article-title":"Body mass index and sleep disturbances: A systematic review and meta-analysis","volume":"32","author":"Amiri","year":"2023","journal-title":"Postep. 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