It is an important fact that the onset of adolescence is a time of both physiological and social changes that affect sleep. In this study, the prevalence of sleep disorders in adolescents and the association between them were investigated. Anthropometric dimensions (such as height and weight) of individuals in Kerman in 2019 were also assessed. A total of 451 adolescents (mean age: 14.72 years; 51.88% females) of Kerman, Iran, took part in this cross-sectional study. Participants completed the Pittsburgh Sleep Quality Index (PSQI) questionnaire, and then demographic (age, gender) and anthropometric data (weight and height) were collected. The prevalence of sleep disorders in this population was 31.9%. Among those with self-rated sleep disorders, 53.5% were males. Participants with sleep disorders were younger and showed lower anthropometric values such as height, weight, and body mass index. However, there was no difference between sleep disorders and gender (P-value > .05). This study revealed a relatively high prevalence of sleep disorders among adolescents. This research was done with the aim of encouraging the healthcare organization to design educational programs to evaluate and reduce sleep disorders.