Humans are, as a rule, diurnal species. However, there are interindividual differences where people have different perspectives and preferences on their time of day to be most productive and effective, or to sleep which is closely related to a concept called “Chronotype”. Chronotype is divided into two groups: morningness and eveningness. Hence, this study aims to explore how morningness and eveningness are associated with medical students’ GPA, thus providing valuable insights regarding chronotype-specific academic interventions for medical students. This cross-sectional study involved 253 medical students among University Of Cyberjaya from Year 1 to Year 5 (aged 19-35). The morningness-eveningness questionnaire (MEQ), the sociodemographic background questionnaire (NHMS), and the supplementary GPA requirement were all included in the online questionnaire that was used to collect the data. Among the 253 participants, the majority were females (59.3%), predominantly aged between 21-22 years old (39.5%) with most from the ethnic group of Malay (55%). Based on the result, the majority of the medical students were characterized as intermediate chronotype (64.4%), followed by evening type (23.3%) and morning type (12.3%). Moreover, the findings indicate that sleep habits and academic achievement are correlated, with a p-value of less than 0.001, a chi-square value of 47.73, and a degree of freedom (df) of 4. Therefore, these findings have significant ramifications for initiatives aimed at enhancing students’ sleep patterns in order to improve their academic performance.