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Here, we report the Italian findings from the second International COVID\u201019 Sleep Study survey, aiming to investigate sleep and dream alterations in participants with post\u2010acute symptoms, and identify the best determinants of these alterations among patients with long\u2010COVID. Data from 383 participants who have had COVID\u201019 were collected through a web\u2010survey (May\u2013November 2021). Descriptive analyses were performed to outline the sociodemographic characteristics of long\u2010COVID (<jats:italic>N<\/jats:italic>\u00a0=\u00a0270, with at least two long\u2010lasting symptoms) and short\u2010COVID (<jats:italic>N<\/jats:italic>\u00a0=\u00a0113, with none or one long\u2010lasting symptom) participants. They were then compared concerning sleep and dream measures. We performed multiple linear regressions considering as dependent variables sleep and dream parameters discriminating the long\u2010COVID group. Age, gender, work status, financial burden, COVID\u201019 severity and the level of care were significantly different between long\u2010COVID and short\u2010COVID subjects. The long\u2010COVID group showed greater sleep alterations (sleep quality, daytime sleepiness, sleep inertia, naps, insomnia, sleep apnea, nightmares) compared with the short\u2010COVID group. We also found that the number of long\u2010COVID symptoms, psychological factors and age were the best explanatory variables of sleep and oneiric alterations. Our findings highlight that sleep alterations are part of the clinical presentation of the long\u2010COVID syndrome. Moreover, psychological status and the number of post\u2010acute symptoms should be considered as state\u2010like variables modulating the sleep problems in long\u2010COVID individuals. Finally, according to previous investigations, oneiric alterations are confirmed as a reliable mental health index.<\/jats:p>","DOI":"10.1111\/jsr.13789","type":"journal-article","created":{"date-parts":[[2022,11,18]],"date-time":"2022-11-18T11:12:15Z","timestamp":1668769935000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["The role of sleep and dreams in long\u2010<scp>COVID<\/scp>"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9260-7111","authenticated-orcid":false,"given":"Serena","family":"Scarpelli","sequence":"first","affiliation":[{"name":"Department of Psychology Sapienza University of Rome  Rome Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandra","family":"De Santis","sequence":"additional","affiliation":[{"name":"Department of Psychology Sapienza University of Rome  Rome 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