In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.

Sleep Study

- Summary
- About sleep study
- Types and differences
- Before the study
- During and after the study
- Treatments that may follow
- Questions for your doctor

Reviewed By:
Steven A. King, M.D.


Sleep studies are tests performed in a sleep center that measure physiological aspects of sleep. They are typically performed in a sleep center, and are used to diagnose sleep disorders including insomnia, hypersomnia, sleep apnea and narcolepsy.

A number of activities are measured during a sleep study, such as electrical activity of the brain and heart, oxygen saturation and leg muscle movement.

Before the sleep study, patients may be required to maintain a sleep diary in which they record their sleep patterns. Some ways to prepare for the study are avoiding alcohol and caffeine and packing a bag with personal items needed for an overnight stay.

During the sleep study, electrodes and other sensors are usually placed on the scalp, sides of the head and under the chin, chest and legs. A sensor is typically placed under the nose and mouth and belts are placed around the chest and abdomen. A clip is placed on a finger.

Patients go to sleep and are monitored throughout the night by a technician and video cameras. After the study is completed, the results are tabulated and may be sent to the physician or other health professional who referred the patient to the sleep center.

Patients may receive a variety of treatments for sleep disorders diagnosed during the study, such as lifestyle changes, medications and therapy.

page 1 of 7 | Next Page

Review Date: 03-15-2007

People with chronic sleep problems may be at risk for suicidal...

Obesity is found to be a risk factor for restless leg syndrome.

Obesity is found to be a risk factor for restless leg syndrome.

Chronic insomnia coupled with sleeping less than 5 hours a night...

The best way to boost your immune system.

People who snore or burn more calories in their sleep than those who sleep soundly.

Advice From Dr. Nancy Snyderman

Dr. Nancy Snyderman

Helpful tips and information on weight loss

Get answers from an expert


Home  |  Health Centers  |  Health A-Z  |  Staying Healthy  |  Diet & Fitness  |  Woman & Family  |   |   |  

also on iVision:  |   |   |   |   |   |   | 

 |   |  Site Map  |   | 

Copyright (c) 2000-2009 iVision Inc. All rights reserved. The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.