Latar belakang. Gangguan tidur adalah kondisi yang ditandai dengan gangguan jumlah, kualitas, atau waktu tidur. Dampak gangguan tidur adalah gangguan belajar, memori, mood, perilaku, dan atensi. Tujuan. Mengetahui prevalensi, gambaran Background. Sleep disorder is a condition characterized by disorder of amount, quality, or duration of sleep. Its impacts are difficulties in learning, memory, mood, behavior, and attention. Objectives. Evaluate prevalence, description of sleep disorder, impact of intervention on daytime sleepiness, mood, difficulty waking up, duration of sleep, and on Sleep Disturbance Scale for Children (SDSC) and Pediatric Daytime Sleepiness Scale (PDSS) score. Methods. Quasi experiment study in elementary schools in Central Jakarta during Mei-June 2015. Screening and evaluation after 8 weeks of intervention using SDSC and PDSS scores. Results. Sleep disorder prevalence was 25.1%: Disorder of initiating and maintaining sleep (DIMS) 61.5%, Sleep wake transition disorder (SWTD) 61.5%, Disorder of excessive somnolence (DOES) 55.4%, and Disorder of arousal (DA) 51.5%. Improvements in daytime sleepiness, mood, difficulty waking up, pre and post intervention as measured with SDSC score show significant improvements (p<0,001).Conclusions. Sleep hygiene intervention shows improvements in daytime sleepiness, mood, difficulty waking up, and significant differences of the SDSC score. Sari Pediatri 2016;18(2):93-9