{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T15:08:16Z","timestamp":1783696096966,"version":"3.55.0"},"reference-count":51,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,4,25]],"date-time":"2025-04-25T00:00:00Z","timestamp":1745539200000},"content-version":"vor","delay-in-days":114,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"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":["Depression and Anxiety"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:p>\n                    Sleep disturbances, including insomnia and trauma\u2010related nightmares (TRNs), are the core symptoms of post\u2010traumatic stress disorder (PTSD) in military personnel. Furthermore these nocturnal manifestations are directly related to the persistence of daytime PTSD symptoms and are known to exacerbate comorbid conditions such as depression, suicidality, and daytime impairments. This prospective study examined the variability of PTSD\u2010related sleep disruptions and its relationship to symptom severity using ecological recordings over several nights. One hundred thirty PTSD\u2010diagnosed service members and 65 healthy military controls recorded sleep data at home for five nights using a polysomnographic headband to measure total sleep time (TST), sleep onset latency (SOL), wake after sleep onset (WASO), sleep efficiency index (SEI), and sleep stages. PTSD severity and comorbid symptoms were assessed by clinical evaluations. Compared to controls, PTSD participants had higher SOL and WASO (+14.1\u2009min and +9.1\u2009min,\n                    <jats:italic>p<\/jats:italic>\n                    &lt; 0.001, respectively), reduced SEI (\u22126.6%,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009 &lt; 0.001), and lower N3 and rapid eye movement (REM) sleep durations. In addition, night\u2010to\u2010night variability (NNV) in SOL and WASO was higher in the PTSD group. The sleep fragmentation index (FI)\u2014and more specifically non\u2010REM (NREM) sleep fragmentation\u2014was significantly correlated with PTSD severity, particularly the intrusive and avoidance symptoms clusters in the PCL\u20105 score. The results highlight the need for customized multinight assessments to study sleep variability in military patients with combat\u2010related PTSD, in order to advance therapeutic strategies for military populations.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Trial Registration:<\/jats:bold>\n                    ClinicalTrials.gov Identifier: NCT04581850\n                  <\/jats:p>","DOI":"10.1155\/da\/8011375","type":"journal-article","created":{"date-parts":[[2025,4,25]],"date-time":"2025-04-25T07:37:02Z","timestamp":1745566622000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["PTSD Symptom Severity Associated With Sleep Disturbances in Military Personnel: Evidence From a Prospective Controlled Study With Ecological 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