ABSTRACT
INTRODUCTION In clinical practice, parent-reported sleep problems in children diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD) are quite frequent. According to a review of the literature by Corkum et al. (1), the estimate of the prevalence of sleep problems in children with ADHD is between 25% and 50%, compared with 7% of normal controls. This represents approximately a fivefold increase in the rate of sleep problems in children with ADHD. From a clinical standpoint, sleep disturbances associated with ADHD are of relevance, since they represent a significant source of distress for the child and/or the family. Moreover, sleep alterations may worsen or, in some cases, mimic daytime ADHD symptoms (i.e., inattention, impulsivity, and hyperactivity).
