Background: Sleep quality is when someone can fall asleep without waking up throughout the night. Students are vulnerable experiencing poor sleep quality where it has a negative impact in processing emotional information. A 2016 study in North Sumatra stated that 61.7% students experienced poor sleep quality and a preliminary survey of 22 students showed that 90.9% students became more irritable when their sleep quality was poor. Aim: To identify the relationship of sleep quality with the emotions of nursing students at One Private University in the West Region of Indonesia. Research Methods: This research used quantitative methods with correlational design. The sample of 182 students taken by purposive sampling technique. The instruments were the Pittsburgh Sleep Quality Index (PSQI) questionnaire and Positive and Negative Affect Schedule (PANAS) Scale. Data was analyzed univariately also use the Chi-Square test. Results: During the past month, students (79.1%) experienced poor sleep quality and 61.5% experienced positive emotions during the past week. Chi-square analysis shown a significant relationship between sleep quality and emotions (p=0.001). Recommendation: Students may create their own schedule of daily activities so that they can train themselves to manage activities and rest to get good sleep quality that support emotional stability.