Updated 2/14/2025

Sleep study (polysomnography)

A sleep study, or polysomnography, is a test that records your brain waves, breathing, and other body functions while you sleep. It helps doctors understand your sleep patterns and diagnose sleep disorders.

Purpose

This procedure is performed to diagnose conditions such as sleep apnea, insomnia, and other sleep-related issues. By monitoring your sleep, doctors can determine the best treatment options for you.

Risks, Benefits, and Alternatives

It helps identify sleep disorders that may be affecting your health and quality of life.
The results can guide treatment decisions, leading to better sleep and overall well-being.
It can help improve daytime alertness and reduce fatigue.

Procedure Details

Preparation

Avoid caffeine and alcohol for at least 24 hours before the study.
Take your usual medications unless instructed otherwise by your doctor.
Wear comfortable clothing and bring any personal items you may need for sleeping.

Process

You will arrive at the sleep center in the evening before your scheduled sleep time.
A technician will attach sensors to your scalp, face, chest, and legs to monitor your sleep.
You will be asked to lie down in a comfortable bed in a quiet room.
The technician will explain how the equipment works and answer any questions.
You will then be encouraged to sleep as normally as possible while the study is recorded.

Recovery

You can resume your normal activities the following day after the study.
The technician will remove the sensors before you leave the facility.
You may feel tired from the disrupted sleep, but this is normal.

Duration

The sleep study typically lasts 6-8 hours overnight.

Anesthesia

No anesthesia is used for this procedure.

Cost Information

The cost of a sleep study can vary widely, typically ranging from $500 to $3,000. Insurance coverage may help reduce out-of-pocket expenses, so it's advisable to check with your provider beforehand.

Video Overview

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