The descriptions of the following sleep disorders were compiled with the assistance of the Northside Hospital's Sleep Disorders Center. Jefferson Health System Sleep Disorders Everyone has an individual sleeping pattern, so while some adults need 10 hours a night, others might need only five hours a night.
Many people function best with approximately eight hours of sleep.
What is effective for your husband, your wife, or your friends may not necessarily be what is best for you. Many parts of the brain control it and influence its different stages. These levels or stages of sleep include drowsiness, light sleep, deep sleep, and dream sleep. It is possible to identify which stage of sleep a person is in by measuring different activities of the brain and body. This is accomplished through consultation with representatives of the AASM, industry, and the public.