Introduction: Nutritional status of school-aged children is an important indicator in assessing children's health and growth. Various lifestyle factors such as sleep quality and exposure to food and beverage advertisements on television are suspected to influence children's nutritional status. This study aimed to analyze the relationship between sleep quality and exposure to food and beverage advertisements on television with the nutritional status of sixth-grade students at SDN Mulyasari 1. Methods: This quantitative study employed a cross-sectional design. A sample of 48 sixth-grade students was selected randomly. Sleep quality data were collected using the Pittsburgh Sleep Quality Index (PSQI) questionnaire, while advertisement exposure data were obtained through a structured questionnaire that had been tested for validity and reliability. Nutritional status was measured based on body mass index for age (BMI/A) using WHO 2007 reference z-scores. Data analysis was performed using Spearman correlation test with a significance level of α=0.05. Results: The results showed that out of 48 respondents, 36 students (75%) had normal nutritional status, 3 students (6.2%) were underweight, and 9 students (18.8%) were obese. Statistical analysis revealed no significant relationship between sleep quality and nutritional status (p=0.255; p>0.05) nor between exposure to food and beverage advertisements on television and nutritional status (p=0.467; p>0.05). Conclusion: Sleep quality and exposure to food and beverage advertisements on television were not significantly associated with the nutritional status of sixth-grade students at SDN Mulyasari 1. These findings indicate that other factors such as dietary patterns, physical activity, family environment, and socioeconomic and cultural factors may play a more dominant role in determining the nutritional status of school-aged children. Further research is needed to comprehensively identify the determinants of nutritional status, as well as to strengthen the role of nutrition education and media supervision by parents and schools.