The purpose of this study was to investigate behavioral interventions designed to reduce sleep difficulties in four young children with developmental disorders. Positive bedtime routines and sleep restriction were successful in eliminating bedtime disturbances and nighttime awakenings in four children with significant sleep problems. Positive bedtime routines included activities such as taking a bath, changing into pajamas, and reading a story. Sleep restriction involved reducing the number of hours each child slept while maintaining a consistent bedtime and wake-up time. Positive bedtime routines and sleep restriction also resulted in improved parental satisfaction with the child's behavior at bedtime, the child's sleep pattern, and the time it takes to put the child to bed at night.