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A sleep study/test provides a sleep doctor with the most complete evaluation of your sleep. You will be required to stay overnight at a sleep center, hospital or a hotel room.

A sleep study, also known as polysomnography, records your brain waves, heart rate and breathing as you sleep. It also tracks your eye, leg and arm movements, and oxygen levels in your blood. This information will help your doctor make a diagnosis and develop a treatment plan.

Your medical provider or a sleep doctor may recommend a sleep study to:

  • Test for sleep-related breathing disorders, including sleep apnea
  • Evaluate abnormal behaviors during sleep due to parasomnias
  • As part of the evaluation of narcolepsy or other hypersomnia-related disorders
  • Adjust the levels of airflow in patients who receive CPAP therapy for sleep-related breathing disorders
  • Determine why treatment for a sleep disorder is not working
 

For some with suspected sleep apnea, their medical provider or sleep doctor may recommend a home sleep apnea test instead of a sleep study. A home sleep apnea test uses different equipment that you can set up yourself.

A sleep study is the way to ensure that you have the proper diagnosis for a sleep disorder.


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