This descriptive cross-sectional study compared sleep behaviors of children with autism spectrum disorders with sleep behaviors of typically developing children using the Children's Sleep Habits Questionnaire which includes subtests measuring bedtime resistance, sleep-onset delay, sleep duration, sleep anxiety, night waking, sleep disordered breathing, and daytime sleepiness. Also, sleep quality of both groups were measured using mean activity, sleep latency, number of awakenings, sleep efficiency and total sleep time, as measured by 10 nights of actigraphy. Participants were randomly selected children from the Regional Autism Center. The ASD cohort of 59 children aged 4 to 10 years were compared with 40 typically developing control subjects.