RESUMO
To evaluate sleep hygiene and its relationship with academic performance in adults. Cross sectional. The study was conducted at Dow Medical College, Dow university of Health sciences Karachi from December 2012 to November 2013. Subjects were students from first year to final year. Instrument was an integrated questionnaire [Horne JA and Ostberg O Morningness- Eveningness questionnaire MEQ original 1976] designed to assess chronotype of young adult population. Subjects [N = 690] completed a questionnaire packet and provided their GPA. It was observed that students organizing their activities closer to the morning reported higher GPA whereas students with lower grades reported evening type personality. This study may help universities to decrease the prevalence of poor sleep hygiene by developing interventions programs that target adolescents with low academic achievement