Common procedures
Polysomnography (sleep study)
Performed in Pulmonology.
What is it?
Polysomnography is a test that records what happens in the body during sleep, such as breathing, brain activity and oxygen level. It is used to better understand some sleep problems. It is done with sensors placed on the body.
What to expect
The test is usually done over one night, in a sleep centre. The sensors are painless, although they can make sleeping a little less comfortable.
General information that does not replace your doctor’s advice or the instructions given before a test.
Reference source: MedlinePlus, checked on 13/11/2026. An error or an imprecision? Let us know
