The validity and reliability study of the Cleveland Adolescent Sleepiness Questionnaire and examination of the sleepiness of university students

PURPOSE This study aimed to determine the reliability and validity of the Cleveland Adolescent Sleepiness Questionnaire in Turkish university students, and to determine the sleepiness of students. DESIGN AND METHODS This cross-sectional study was carried out with 852 university students in Turkey, Bolu, between February- May 2019. FINDINGS Results of the analysis indicated that this scale was a valid and reliable measurement tool. As the scores of students' get from Cleveland Adolescent Sleepiness Questionnaire increased, the frequency of students feeling sleepy during the day, sleepiness in and out of school, and getting up in the morning without resting increased. PRACTICE IMPLICATIONS Nurses can use this scale when evaluating university students' sleepiness.