Context and AimsSleep disorders are one of the most common disorders but are not given enough importance in medical teaching. This study was done to find the knowledge of medical students about the most common sleep disorders. Design Cross-sectional study. Methods and Materials A total of 232 final-year medical students from four medical colleges filled up OSAKA and OSAKAkids questionnaire. Statistical Analysis Used Demographic variables were summarized by descriptive statistic measures like counts and percentages. Continuous variables like knowledge scores were summarized as mean and standard deviation. Knowledge scores and perceived importance were compared using t test; p value less than 0.05 was considered as statistically significant. Results Knowledge score of students for OSAKA adults and OSAKA-kids questionnaire was 37.93 ± 16.31 and 42.1 ± 20.27%. 91.47, and 86.21% of students rated OSA in adults and kids, respectively, as important to extremely important clinical disorder. Conclusions Although majority of medical students think OSA is significant medical disorder, their knowledge regarding OSA is very poor. Dedicated sleep medicine training covering main sleep disorders should be done in all medical colleges.