Sleep and Sleep Disorders in Children and Adolescents: Information for Parents and Educators
By Peg Dawson, EdD, NCSP
Seacoast Mental Health Center, Portsmouth, NH
Physicians and psychologists estimate that as many as 30% of children may have a sleep disorder at some point during childhood. Sleep disorders have implications both for social-emotional adjustment and for school performance. For this reason it is important for both parents and educators to understand how sleep works and how disruptions in normal sleep patterns can affect children and teenagers. This handout will provide an introduction to normal sleep patterns, definitions and descriptions of the kinds of sleep disturbances that may affect children and adolescents, and a brief description of recommended treatments.
Normal Sleep Patterns
Types of Sleep Patterns
Sleep is broadly classified into two types: REM (rapid-eye-movement) sleep and non-REM sleep (NREM). By studying brain wave patterns we know that NREM sleep consists of several stages, ranging from drowsiness through deep sleep. In the early stages (Stages I and II) you awake easily and may not even realize that you have been sleeping. In the deeper stages (Stages III and IV) it is very difficult to wake up, and if you are aroused you are likely to find yourself disoriented and confused. In NREM sleep your muscles are more relaxed than when you are awake but you are able to move (although you do not because the brain is not sending signals to the muscles to move).
REM sleep is more active. Breathing and heart rate become irregular, your eyes move rapidly back and forth under your eyelids, and control of your body temperature is impaired so that you do not sweat when you are hot or shiver when you are cold. Below the neck, however, you are inactive because the nerve impulses that travel down the spinal cord to body muscles are blocked. Your body is essentially paralyzed. It is during this sleep stage that you dream.