ADHD linked to sleep disturbance

I have been looking for articles/research in the web linking sleep with ADHD or ADHD medication. My son who has been taking Atomoxetine twice a day seems to have sleep problems. He does not experience sleeplessness but complains about nightmares and very often, if not everyday appear in our room at night complaining of nightmares and falls asleep there.

A new study I read in Science Daily relates sleep problems with ADHD. According to the study, “adolescents with a childhood diagnosis of Attention Deficit/Hyperactivity Disorder (ADHD) are more likely to have current and lifetime sleep problems and disorders, regardless of the severity of current ADHD symptoms”. The study also says, “Authors suggest that findings indicate that mental health professionals should screen for sleep problems and psychiatric comorbidities among all adolescents with a childhood diagnosis of ADHD”.

However, my son's psychiatrist ruled out any relation of ADHD with sleep disturbance. We are trying to figure out a way to prevent nightmares. We stay with him in his room till he falls asleep before retiring to bed. I am not really sure if we are missing out on any other cause for his sleep disturbance. Will keep you posted!