{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T20:32:23Z","timestamp":1789677143911,"version":"4.0.1"},"reference-count":35,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,8,15]],"date-time":"2025-08-15T00:00:00Z","timestamp":1755216000000},"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>Hypersomnia may be classified as primary or secondary, with secondary hypersomnia arising from a variety of underlying causes. Thus, according to ICSD3-TR classification, the diagnosis of idiopathic hypersomnia (IH) is established based on (1) excessive daytime sleepiness (EDS); (2) electrophysiological findings including either a mean sleep latency of less than 8 min on the Multiple Sleep Latency Test (MSLT) or increased total sleep (\u226511 h) on 24 h polysomnography; and (3) systematic elimination of other potential etiologies, including sleep deprivation, substances, and medical, psychiatric (notably mood disorders), or sleep disorders. Nevertheless, the clinical heterogeneity observed in IH fuels an ongoing debate, reflecting the limited understanding of its underlying pathophysiological mechanisms. This report describes the case of a patient presenting with a clinical and polysomnographic phenotype of IH (MSLT &lt; 8 min). A comprehensive psychopathological evaluation was performed to explore the possibility of secondary hypersomnia, which revealed features consistent with complex post-traumatic stress disorder (c-PTSD). Psychotherapy focused on c-PTSD was administered with positive and objective results in hypersomnolence\/EDS. This clinical improvement suggests a potential relationship between psychological trauma and hypersomnia, a connection that is rarely described in the literature and warrants further investigation. This case highlights the need for a comprehensive assessment of secondary factors, particularly complex trauma, even in the presence of a clinical and polysomnographic phenotype consistent with IH.<\/jats:p>","DOI":"10.3390\/clockssleep7030043","type":"journal-article","created":{"date-parts":[[2025,8,15]],"date-time":"2025-08-15T14:24:28Z","timestamp":1755267868000},"page":"43","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Successful Treatment of Secondary Hypersomnia Due to Complex Post-Traumatic Stress Disorder with Eye Movement Desensitization and Reprocessing: A Case Report"],"prefix":"10.3390","volume":"7","author":[{"given":"Vlad","family":"Bucurescu","sequence":"first","affiliation":[{"name":"Faculty of Psychology, UniDistance Suisse, 3900 Brig, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9938-9639","authenticated-orcid":false,"given":"Laure","family":"Peter-Derex","sequence":"additional","affiliation":[{"name":"Sleep Medicine and Respiratory Disease Center, Croix-Rousse Hospital, CHU of Lyon, 103 Gd Rue de la Croix-Rousse, 69000 Lyon, France"},{"name":"Lyon 1 University, 43 Bd du 11 Novembre 1918, 69000 Lyon, France"},{"name":"Lyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Lyon 1 University, 69000 Lyon, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Livia","family":"Fantini","sequence":"additional","affiliation":[{"name":"Institute Pascal, CNRS, Clermont Auvergne INP, Universit\u00e9 Clermont Auvergne, 49 bd Fran\u00e7ois Mitterrand, 63000 Clermont-Ferrand, France"},{"name":"Neurophysiology Department, University Hospital, 58 rue Montalembert, 63000 Clermont-Ferrand, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1484-6109","authenticated-orcid":false,"given":"Benjamin","family":"Putois","sequence":"additional","affiliation":[{"name":"Faculty of Psychology, UniDistance Suisse, 3900 Brig, Switzerland"},{"name":"Lyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Lyon 1 University, 69000 Lyon, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,15]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2018). 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