sleep study guide

Polysomnogram (PSG)

Typically an overnight sleep study but can be performed during the day

***Day studies occur only if specifically ordered by the physician

Must collect a minimum of 6 hours of data

This type of sleep study is scheduled at 8:00pm, 9:30pm for night studies, or 8:00am for day studies.

Home sleep Apnea test

A sleep apnea study performed at home and unattended by a sleep technologist. Monitors heart rate, oxygen levels, respiratory airflow, and respiratory effort. It does not monitor brain activity.

Not suitable for individuals with significant health concerns or other sleep disorders.

Our staff will instruct you on how to use it before you take it home. See the video below should you have questions when you get home.

multiple sleep latency test

Day Study that is continued from the PSG from the night before.

6-8 hour procedure

This is a nap study that measures how quickly you can fall asleep during the day. It is typically used to further evaluate excessive daytime sleepiness.


Overnight sleep study (unless otherwise requested by ordering Physician, see above)

Incorporates use of a sleep apnea treatment.

This type of sleep study is scheduled at 8:00pm or 9:30pm.

Sleep wellness institute staff and patient in lounge

At the Sleep Wellness Institute, we'll help you with the details

Our trained and caring staff is available to help you through the process and answer any questions you may have.


Total time including set up: 3-4 hours.

Total sleep test time: 1-2 hours

Desensitize to therapy.

Typically used for patients are struggling with sleep apnea treatment tolerance.

This type of sleep study can be scheduled at 8:00am or 1:00pm.

Maintenance of Wakefulness Test- (MWT)

4-6 hour study

Measures how well a patient is able to stay awake during the day.