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How-To Information:
How is a sleep study done?
A sleep study is conducted overnight. The individual arrives in the early evening and plans to spend the night in a bed in the sleep lab. Although a sleep study may look high-tech, it is pain-free and individuals are usually quite comfortable.
Electrodes will be attached with soft tape to various parts of the body, including the head, chest and legs. A belt may be placed around the abdomen and chest. These devices are linked to computerized equipment that record the body's sleep patterns through the night.
Recordings are made of brain wave activity, respiration (breathing), heart rhythm, eye movements, chest movements, arm and leg movements, and pulse oximetry, which measures the level of oxygen in the blood. In the morning, there is a wealth of data that can be analyzed.
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