Hamayesh Arwin Alborz همایش آروین البرز <meta name= sepjr 3 1 2026 08 15 The Role of Acceptance, Psychological Flexibility, and Resilience in the Sleep Quality of Pregnant Women with the Mediation of Mindfulness The Role of Acceptance, Psychological Flexibility, and Resilience in the Sleep Quality of Pregnant Women with the Mediation of Mindfulness 250 264 FA Farahnaz Najafi Research Development Unit of Al-Zahra Educational and Treatment Center, Tabriz University of Medical Sciences Farahnaz Najafi Research Development Unit of Al-Zahra Educational and Treatment Center, Tabriz University of Medical Sciences Narges Pourtaleb Corresponding Author: Department of Psychology and Counselling, Farhangian University, P.O. Box 14665-889, Tehran, Iran. Narges Pourtaleb Corresponding Author: Department of Psychology and Counselling, Farhangian University, P.O. Box 14665-889, Tehran, Iran. Mohammad Nasiri Department of Clinical Psychology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran Mohammad Nasiri Department of Clinical Psychology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran 2026 08 15 Background: This study was conducted aiming to determine the role of acceptance, psychological flexibility, and resilience in the sleep quality of pregnant women through the mediation of mindfulness. Materials and Methods: This was a descriptive-correlational study. The statistical population consisted of all pregnant women referred to Al-Zahra Hospital in Tabriz city in 2024. Based on Klein’s guidelines, a sample of 300 participants was selected (of whom 13 were excluded) using convenience sampling method. Data were collected using The Pittsburgh Sleep Quality Index (PSQI), The Acceptance and Action Questionnaire – version 2 (AAQ-II), The Psychological Flexibility Questionnaire (PFQ), The Connor-Davidson Resilience Scale (CD-RISC), and The Five Facet Mindfulness Questionnaire (FFMQ). Data analysis was conducted using Pearson's correlation coefficient in SPSS version 21 and structural equation modeling (SEM) in LISREL version 8.8. Results: The findings revealed that acceptance, resilience, and mindfulness have a direct and negative effect on the sleep quality of pregnant women (p < 0.05). The direct effects of psychological flexibility on mindfulness and sleep quality were not significant (p > 0.05). The investigation of indirect effects indicated that acceptance and resilience had an indirect and negative effect on the sleep quality of pregnant women through mindfulness (p < 0.05); however, the indirect effect of psychological flexibility on sleep quality through mindfulness was not significant (p > 0.05). Conclusion: According to the findings, it is suggested that acceptance and resilience along with mindfulness play a significant role in sleep quality of pregnant women and should be incorporated into relevant counseling programs. Background: This study was conducted aiming to determine the role of acceptance, psychological flexibility, and resilience in the sleep quality of pregnant women through the mediation of mindfulness. Materials and Methods: This was a descriptive-correlational study. The statistical population consisted of all pregnant women referred to Al-Zahra Hospital in Tabriz city in 2024. Based on Klein’s guidelines, a sample of 300 participants was selected (of whom 13 were excluded) using convenience sampling method. Data were collected using The Pittsburgh Sleep Quality Index (PSQI), The Acceptance and Action Questionnaire – version 2 (AAQ-II), The Psychological Flexibility Questionnaire (PFQ), The Connor-Davidson Resilience Scale (CD-RISC), and The Five Facet Mindfulness Questionnaire (FFMQ). Data analysis was conducted using Pearson's correlation coefficient in SPSS version 21 and structural equation modeling (SEM) in LISREL version 8.8. Results: The findings revealed that acceptance, resilience, and mindfulness have a direct and negative effect on the sleep quality of pregnant women (p < 0.05). The direct effects of psychological flexibility on mindfulness and sleep quality were not significant (p > 0.05). The investigation of indirect effects indicated that acceptance and resilience had an indirect and negative effect on the sleep quality of pregnant women through mindfulness (p < 0.05); however, the indirect effect of psychological flexibility on sleep quality through mindfulness was not significant (p > 0.05). Conclusion: According to the findings, it is suggested that acceptance and resilience along with mindfulness play a significant role in sleep quality of pregnant women and should be incorporated into relevant counseling programs. https://sepjr.ir/downloadfilepdf/13996