{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T03:46:08Z","timestamp":1790221568096,"version":"4.1.0"},"reference-count":28,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2013,7,9]],"date-time":"2013-07-09T00:00:00Z","timestamp":1373328000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001711","name":"Swiss National Science Foundation","doi-asserted-by":"crossref","award":["32003B-125504"],"award-info":[{"award-number":["32003B-125504"]}],"id":[{"id":"10.13039\/501100001711","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Sleep Research"],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Increased sleep need following traumatic brain injury, referred to in this study as post\u2010traumatic pleiosomnia, is common, but so far its clinical impact and therapeutic implications have not been characterized. We present a case\u2013control study of 36 patients with post\u2010traumatic pleiosomnia, defined by an increased sleep need of at least 2\u00a0h per 24\u00a0h after traumatic brain injury, compared to 36 controls. We assessed detailed history, sleep\u2010activity patterns with sleep logs and actigraphy, nocturnal sleep with polysomnography and daytime sleep propensity with multiple sleep latency tests. Actigraphy recordings revealed that traumatic brain injury (<jats:styled-content style=\"fixed-case\">TBI<\/jats:styled-content>) patients had longer estimated sleep durations than controls (10.8\u00a0h per 24\u00a0h, compared to 7.3\u00a0h). When using sleep logs, <jats:styled-content style=\"fixed-case\">TBI<\/jats:styled-content> patients underestimated their sleep need. During nocturnal sleep, patients had higher amounts of slow\u2010wave sleep than controls (20 versus 13.8%). Multiple sleep latency tests revealed excessive daytime sleepiness in 15 patients (42%), and 10 of them had signs of chronic sleep deprivation. We conclude that post\u2010traumatic pleiosomnia may be even more frequent than reported previously, because affected patients often underestimate their actual sleep need. Furthermore, these patients exhibit an increase in slow\u2010wave sleep which may reflect recovery mechanisms, intrinsic consequences of diffuse brain damage or relative sleep deprivation.<\/jats:p>","DOI":"10.1111\/jsr.12068","type":"journal-article","created":{"date-parts":[[2013,7,9]],"date-time":"2013-07-09T12:44:39Z","timestamp":1373373879000},"page":"634-639","source":"Crossref","is-referenced-by-count":72,"title":["Excessive sleep need following traumatic brain injury: a case\u2013control study of 36 patients"],"prefix":"10.1111","volume":"22","author":[{"given":"Michael","family":"Sommerauer","sequence":"first","affiliation":[{"name":"Department of Neurology University Hospital Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philipp O.","family":"Valko","sequence":"additional","affiliation":[{"name":"Department of Neurology University Hospital Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Esther","family":"Werth","sequence":"additional","affiliation":[{"name":"Department of Neurology University Hospital Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian R.","family":"Baumann","sequence":"additional","affiliation":[{"name":"Department of Neurology University Hospital Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,7,9]]},"reference":[{"key":"e_1_2_8_2_1","volume-title":"ICSD\u20102\u2013International Classification of Sleep Disorders","author":"American Academy of Sleep Medicine","year":"2005"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000167605.02541.f2"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awm109"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.21836"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1159\/000029408"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1528-1157.44.s10.3.x"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.22-14-06062.2002"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.5664\/jcsm.26855"},{"key":"e_1_2_8_10_1","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1016\/S0140-6736(71)92680-8","article-title":"Brainstem lesions due to closed head injury","volume":"1","author":"Crompton M. 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