It is necessary to promote optimal health and well-being by having more than 7 hours of sleep a day for adults. In modern society, sleep deprivation is a big concern. Students at colleges experience at least twice as many sleep disorders as the general public due to their engagement in many social-, work-, and academic-related activities. The study aims to assess sleep behaviors and the degree of daytime sleepiness and examine the connection between pharmacy students' sleep period and academic success. This cross-sectional research was carried out at the Duhok University pharmacy college on 169 students from first-year to fifth-year. For a given course, students filled out a questionnaire involving demographic variables, sleep habits, sleep length during the regular school week and at night before the test, daytime sleep frequency, and the final score. The results revealed that most pharmacy students had under-optimal sleep durations, described as less than 7 hours. Early sleep and sufficient sleep the night before the test were favorably correlated with student grades and academic success.