ABSTRACT Learning concentration is an essential factor in the success of the learning process, particularly among senior high school students who are undergoing cognitive and psychosocial developmental transitions. Learning concentration is influenced by various internal and external factors, including the learning environment, study duration, and sleep quality. This study aimed to examine the relationship between learning environment, study duration, and sleep quality with learning concentration among students of SMAN 3 Mataram. This study employed a quantitative analytical observational design with a cross-sectional approach. The sample consisted of 105 students from grades X, XI, and XII selected using stratified random sampling. Data were collected using questionnaires measuring learning environment, study duration, sleep quality using the Pittsburgh Sleep Quality Index (PSQI), and learning concentration using the Student Learning Concentration Questionnaire (SLCQ-1). Data analysis included univariate and bivariate analysis using the chi-square test with SPSS version 22. The results showed that most students had a poor learning environment (55.8%), high study duration (53.8%), poor sleep quality (55.8%), and moderate learning concentration levels (60.6%). Bivariate analysis revealed significant relationships between learning environment and learning concentration (p = 0.000; PR = 7.648), study duration and learning concentration (p = 0.000; PR = 20.267), as well as sleep quality and learning concentration (p = 0.000; PR = 15.971). In conclusion, learning environment, study duration, and sleep quality were significantly associated with learning concentration among students of SMAN 3 Mataram. Therefore, collaborative efforts involving schools, students, and parents are necessary to create a supportive learning environment, manage effective study duration, and maintain good sleep quality to enhance students’ learning concentration. Keywords: Learning Environment, Study Duration, Sleep Quality, Learning Concentration, Senior High School Students. ABSTRAK Konsentrasi belajar merupakan faktor penting dalam keberhasilan proses pembelajaran, khususnya pada siswa Sekolah Menengah Atas (SMA) yang berada pada masa transisi perkembangan kognitif dan psikososial. Konsentrasi belajar dapat dipengaruhi oleh berbagai faktor, baik internal maupun eksternal, di antaranya lingkungan belajar, durasi belajar, dan kualitas tidur. Penelitian ini bertujuan untuk mengetahui hubungan lingkungan belajar, durasi belajar, dan kualitas tidur dengan konsentrasi belajar siswa SMAN 3 Mataram. Penelitian ini menggunakan desain kuantitatif analitik observasional dengan pendekatan cross sectional. Sampel penelitian berjumlah 105 siswa kelas X, XI, dan XII yang dipilih menggunakan teknik stratified random sampling. Data dikumpulkan melalui kuesioner lingkungan belajar, durasi belajar, kualitas tidur menggunakan PSQI, serta konsentrasi belajar menggunakan SLCQ-1. Analisis data dilakukan secara univariat dan bivariat menggunakan uji chi-square dengan bantuan SPSS versi 22. Hasil penelitian menunjukkan bahwa sebagian besar siswa memiliki lingkungan belajar buruk (55,8%), durasi belajar tinggi (53,8%), kualitas tidur buruk (55,8%), dan tingkat konsentrasi belajar sedang (60,6%). Analisis bivariat menunjukkan adanya hubungan yang signifikan antara lingkungan belajar dengan konsentrasi belajar (p = 0,000; PR = 7,648), durasi belajar dengan konsentrasi belajar (p = 0,000; PR = 20,267), serta kualitas tidur dengan konsentrasi belajar (p = 0,000; PR = 15,971). Kesimpulan penelitian ini menunjukkan bahwa lingkungan belajar, durasi belajar, dan kualitas tidur berhubungan signifikan dengan konsentrasi belajar siswa SMAN 3 Mataram. Oleh karena itu, diperlukan upaya bersama dari sekolah, siswa, dan orang tua untuk menciptakan lingkungan belajar yang kondusif, mengatur durasi belajar yang efektif, serta menjaga kualitas tidur siswa guna meningkatkan konsentrasi belajar. Kata Kunci: Lingkungan Belajar, Durasi Belajar, Kualitas Tidur, Konsentrasi Belajar, Siswa SMA.
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