{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T03:11:24Z","timestamp":1789096284786,"version":"build-2803163510"},"reference-count":55,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T00:00:00Z","timestamp":1776816000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychol."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>While academic stress is a recognized predictor of sleep disturbances, traditional variable-centered research often obscures the population heterogeneity within this relationship. Adopting a person-centered perspective, this study identified latent configurations of academic stress among college students and examined the psychological mechanisms linking these profiles to bedtime procrastination (BPS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A sample of 741 Chinese university students completed validated measures of academic stress, rumination dimensions, perceived stress, and BPS. Latent Profile Analysis (LPA) was utilized to classify academic stress subtypes. Subsequently, a moderated mediation model was tested to evaluate the parallel mediating roles of two rumination dimensions\u2014symptom rumination and reflection\u2014and the moderating effect of perceived stress.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      LPA identified four distinct latent profiles: Pressure-Insensitive (11%), Well-Adapted (32%), Commonly Burdened (45%), and Overwhelmed (12%). The\n                      <jats:italic>Overwhelmed<\/jats:italic>\n                      group exhibited the highest BPS scores (\n                      <jats:italic>M<\/jats:italic>\n                      = 0.325), significantly higher than the\n                      <jats:italic>Pressure-Insensitive<\/jats:italic>\n                      group (\n                      <jats:italic>M<\/jats:italic>\n                      = \u22120.283). Mediation analysis revealed divergent cognitive pathways: Symptom rumination functioned as a maladaptive mediator that increased BPS (\u03b2 = 0.24,\n                      <jats:italic>p<\/jats:italic>\n                      = 0.002), whereas reflection acted as an adaptive mediator that buffered the adverse effects (\u03b2 = \u22120.22,\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.01). Notably, the\n                      <jats:italic>Overwhelmed<\/jats:italic>\n                      profile was the strongest predictor of symptom rumination (\u03b2 = 1.57,\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.001). Furthermore, perceived stress significantly moderated the link between the\n                      <jats:italic>Commonly Burdened<\/jats:italic>\n                      profile and symptom rumination (Interaction B = 0.27,\n                      <jats:italic>p<\/jats:italic>\n                      = 0.009). Simple slope analysis confirmed that this maladaptive pathway was activated only under high levels of perceived stress (Slope = 0.39,\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.01) but remained insignificant at low levels.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>These findings underscore the dual nature of rumination and the \u201cgating\u201d role of subjective appraisal in the stress-sleep relationship. The results suggest that stratified interventions targeting specific cognitive-emotional deficits within different stress profiles are essential for mitigating sleep self-regulation failures among university studencvts.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpsyg.2026.1784775","type":"journal-article","created":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T05:51:36Z","timestamp":1776837096000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Academic stress profiles and bedtime procrastination among college students: the mediating role of rumination and the moderating effect of perceived stress"],"prefix":"10.3389","volume":"17","author":[{"given":"Bingchi","family":"Xiang","sequence":"first","affiliation":[{"name":"Research Center for Artificial Intelligence and Future Education, Wenzhou University","place":["Wenzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guocang","family":"Li","sequence":"additional","affiliation":[{"name":"School of Management, Henan University of Technology, High-Tech Zone","place":["Zhengzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wang","family":"Xiang","sequence":"additional","affiliation":[{"name":"Cheung Kong School of Journalism and Communication, Shantou University","place":["Shantou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,4,22]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1618","DOI":"10.1016\/j.jpsychires.2012.09.008","article-title":"The interaction between sleep quality and academic performance.","volume":"46","author":"Ahrberg","year":"2012","journal-title":"J. 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