Sleep Center

About the Sleep Center

People who experience more than an occasional sleepless night know that lack of sleep is a serious problem and requires specialized attention. The Sleep Center at Greenwich Hospital, nationally accredited by the American Academy of Sleep Medicine, provides help to people of all ages who suffer from sleep problems.

Sleep disorders affect young children and adolescents, too. As many as one out of three elementary school children may suffer from sleep problems at some time in their lives. Yet many go undiagnosed. Learn more about Children’s Sleep Services >>

The Sleep Center Staff

All of our specialists are board certified in sleep disorders.

Stuart W. McCalley, MD, Director, Greenwich Hospital Sleep Center, is a pulmonologist and sleep specialist who treats a variety of sleep disorders.

Hossein Sadeghi, MD is a pediatric pulmonologist and sleep specialist who evaluates sleep-related breathing disorders in children.

Saul Rothenberg, PhD is a psychologist and sleep specialist who evaluates and treats children, adolescents and adults with a variety of sleep complaints, including insomnia.

Sleep Technologists:
These registered respiratory therapists are specially licensed and trained to monitor advanced equipment used to diagnose specific sleep disorders.

Other Specialists:
Treatment of many sleep problems often requires the assistance of neurologists, other medical and surgical specialists. The Sleep Center’s location within Greenwich Hospital makes it easy for patients to access additional services.

Types of Sleep Disorders
Following are just a few of the many conditions and problems that are considered sleep disorders:
  • Insomnia. Having trouble falling or staying asleep.
  • Sleep Apnea. A serious condition that causes a person to intermittently stop breathing during the night. More details >>
  • Narcolepsy. A neurological disorder characterized by an uncontrollable need to sleep, regardless of the time of day or the situation.
  • Restless Legs. Jumpy, uncomfortable feelings in the legs that interfere with sleep.
  • Abnormal Sleep Behaviors. Moving, talking or walking while sleeping.
  • Sleep Terrors. Terrifying episodes that cause the sleeper to suddenly awaken during the night.
  • Nightmares. Long, frightening dreams that occur frequently, disrupting sleep.
  • Psychological Conditions. Mental health problems, including depression and anxiety, may cause an individual to sleep too much or too little.
Symptoms related to sleep disorders
Snoring by itself, even loud snoring, does not mean you have sleep apnea. However, if you have ever fallen asleep against your will, or if you or your bedmate answer “yes” to several of the following questions, consult your physician for further diagnosis.

Do you frequently…

  • Wake up groggy or tired in the morning, no matter how many hours you slept?
  • Wake up startled, gasping for air, or with your heart pounding?
  • Have morning headaches?
  • Experience uncontrollable sleepiness at inappropriate moments, while driving your car, at meals, at an important meeting, or consistently in front of the TV?
  • Perform poorly at work? Feel as if you are not as sharp?
  • Have trouble concentrating or remembering?
  • Suffer from high blood pressure?
  • Experience loss of interest in sex?
  • Feel irritable or display unprovoked outbursts of temper?

Does your bedmate…

  • Snore very loudly?
  • Flail arms and legs during the night?
  • Have difficulty getting air in and out of the nose or mouth?
  • Appear to be struggling or choking?
  • Wake up startled?
  • Seem to stop breathing during the night?

Are you at risk for obstructive sleep apnea?   Learn more >>

Another test to rank sleep status is the Epworth Sleepiness Scale.  If you score more than 10, see your physician. Take test >>

The Sleep Center offers evaluation, diagnosis and treatment services. Learn more >> 

To make an appointment or for more information, call the Sleep Center at Greenwich Hospital at 203-863-3167, or e-mail


  • 203-863-3167