A polysomnogram is a test which measure bodily functions during sleep. Typical measurements include:
- brain waves (sensors placed on scalp)
- heart beat (sensors placed on chest)
- eye movements (sensors placed above and below the eye(s))
- muscle tension (sensors on the chin)
- leg movements (sensors placed on calf)
- airflow (sensor above the upper lip)
- breathing effort (expandable belt placed around the waist)
- oxygen level (small sensor on finger)
FAQs
How do I sleep with all these things on me?
Most people sleep very well. The sensors are applied to the surface of your skin in a painless way that allows you to move and turn during your sleep. Generally, you will not be aware that you are wearing them after they have been on for a short time. Remember, this is not a ‘test’, merely a recording of how you sleep.
Will I be given a drug to make me sleepy?
No.
What is a Multiple Sleep Latency Test (MSLT)?
Some patients participate in daytime testing. They are given several opportunities to take a 20-minute nap (opportunities are spaced two hours apart.) The information collected is used to quantify the degree of daytime sleepiness experienced by people.
What happens to my polysomnogram?
The record of your sleep will be 800 to 1000 pages long. It will be scored and interpreted by the sleep specialist. A final interpretation will be forwarded to your physician.
