Maintenance of Wakefulness Test

The Maintenance of Wakefulness Test (MWT) is a way to evaluate the ability to stay awake during the day. An overnight diagnostic sleep study called a polysomnogram (PSG) is usually required the night prior to the daytime MWT. After the PSG is complete, the MWT testing is spread over the following day. There are 4 tests spaced 2 hours apart.

After being asked to stay awake, sensors on the head and chest record your brain wave activity, eye movements, muscle contractions, and heart activity to accurately detect if you fall asleep.

The information we collect during your study is reviewed and analyzed by our sleep specialists.

Click here for Maintenance of Wakefulness Test Frequently Asked Questions