<b>Does Daytime Sleepiness Affect Emotional Regulation A Questionnaire Based Analysis in Medical Students</b> Addiction to smart gadgets among the adolescents of generation Z may influence their sleep rhythm reflecting their mental health. The present study is aimed at analysing the correlation between daytime sleepiness and emotional regulation. Literature is scanty on this study in adolescents from north costal Andhra pradesh. This is a questionnaire based study where the study group was explained about the aim before circulating the google forms. Epworth sleepiness and emotional regulation questionnaires were given. Identity was kept anonymous. 132 medical students 45 boys, 87 girls age ranging between 17 22 years participated. The results were analysed and the correlation between these were studied. Cognitive reappraisal is the attempt to re interpret an emotion eliciting situation changing its emotional impact. Expressive suppression is an attempt to hide inhibit or reduce an ongoing emotion. Pearson’s correlation coefficent R value for correlation between daytime sleepiness and cognitive reappraisal component of emotional regulation was 0.00364 which implies the variables are weakly correlated. Pearson’s correlation coefficent R value for correlation between daytime sleepiness and expressive suppression component of emotional regulation was 0.1933 which implies the variables are weakly correlated. More research need to be done on this area to interpret the results on a large population. It can be concluded that daytime sleepiness and emotional regulation are weakly correlated. The cognitive reaprraisal component of emotional regulation was found to be more weakly correlated when compared to the expressive suppression. Daytime sleepiness, medical students, cognitive reappraisal, expressive suppression, emotional regulation 58-60 Issue-4 Volume-6 Dr. Ravi Sunder. R | Dr. Neelima. P