<![CDATA[ABSTRAK Gangguan kualitas tidur dan kesehatan mental merupakan masalah umum pada mahasiswa, khususnya mahasiswa kedokteran yang menghadapi tekanan akademik tinggi. Praktik sleep hygiene yang buruk berkontribusi terhadap penurunan kualitas tidur dan berdampak negatif pada kesehatan mental, seperti stres dan kecemasan. Tingginya prevalensi gangguan tidur dan masalah kesehatan mental pada kelompok usia 15–24 tahun menunjukkan bahwa isu ini penting karena memengaruhi kesejahteraan dan produktivitas akademik. Penelitian ini bertujuan mengetahui pengaruh praktik sleep hygiene terhadap kesehatan mental mahasiswa Fakultas Kedokteran Universitas Tadulako, dengan kualitas tidur sebagai mediator. Metode yang digunakan adalah observasional analitik dengan desain cross-sectional. Sampel berjumlah 184 mahasiswa yang dipilih melalui teknik purposive sampling. Instrumen penelitian meliputi Sleep Hygiene Index (SHI), Pittsburgh Sleep Quality Index (PSQI), dan General Health Questionnaire-12 (GHQ-12). Analisis data dilakukan secara univariat, bivariat, dan multivariat menggunakan multiple regression. Hasil penelitian menunjukkan 50,5% responden memiliki praktik sleep hygiene buruk, 89,7% memiliki kualitas tidur buruk, dan 89,7% mengalami distress psikologis. Analisis menunjukkan hubungan signifikan antara praktik sleep hygiene dan kualitas tidur terhadap kesehatan mental (p < 0,01; r = 0,056). Temuan ini menegaskan pentingnya penerapan sleep hygiene yang baik dalam menjaga kualitas tidur dan kesehatan mental mahasiswa. ABSTRACT Sleep quality disorders and mental health problems are common among students, especially medical students who have high academic pressure. Poor sleep hygiene contributes to decreased sleep quality, which negatively impacts mental health, including increased stress and anxiety. The high prevalence of sleep and mental health disorders among individuals aged 15–24 highlights the importance of this issue, as it significantly impacts students’ well-being and academic productivity. This study aims to determine the influence of sleep hygiene practices on the mental health of students of the Faculty of Medicine, Tadulako University by considering the quality of sleep as a mediator. This research method used an observational analytical method with a cross-sectional design. A total of 184 students were selected through purposive sampling. Research instruments included the Sleep Hygiene Index (SHI), Pittsburgh Sleep Quality Index (PSQI), and General Health Questionnaire-12 (GHQ-12). Data were analyzed using univariate, bivariate, and multivariate methods with multiple regression. The results showed that 50.5% of respondents had poor sleep hygiene practices, 87.5% experienced poor sleep quality, and 89.7% showed psychological distress. Multiple regression analysis revealed a significant relationship between sleep hygiene, sleep quality, and mental health (p < 0.001; r = 0.903), emphasizing the importance of good sleep hygiene.]]>
