Wisconsin Sleep

sleep laboratory

For Patients


Sleep Apnea Questionnaire


Preparing for your sleep study and study results


Pediatric sleep studies




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Lab Hours


Sunday-Thursday, 5pm-7am

The Wisconsin Sleep,™ Inc. laboratory includes 16 sleep study rooms. Each has a full-sized bed, flat-screen satellite television and private bathroom.


Children’s sleep study rooms are larger and include a second bed to accommodate a parent or guardian.  The rooms were designed for your comfort and to promote good sleep.


That patient-friendly environment comes with some of the latest in sleep technology under the supervision of highly trained sleep professionals. Laboratory technicians are certified by the Board of Registered Polysomnographic Technologists (BRPT).


Sleep studies can happen during the day or night, depending on your sleep problems. Studies are painless and easy – during a study, you’ll have tiny monitors placed on your scalp, face and legs with washable paste or tape, and you may have some stretchy bands around your chest or stomach.


Wisconsin Sleep laboratory patient roomSleep tests include:

  • Polysomnography: Polysomnography is a comprehensive recording of physical changes and activities that occur during sleep. It is usually performed at night, and monitors body functions including brain (EEG), eye movements (EOG), muscle activity (EMG), heart rhythm (ECG), and breathing through sensors placed on the face, chest and legs. It is one of the most common types of sleep tests.
  • Multiple Sleep Latency Test (MSLT): Multiple Sleep Latency Tests are also called “nap studies” and are used to see how quickly you fall asleep in quiet times during the day. Nap studies usually consist of four to five nap opportunities of 15-20 minutes with breaks lasting for two hours in between them.
  • Maintenance of Wakefulness Test (MWT): Maintenance of Wakefulness Tests are day studies used to measure your ability to stay awake after a good night’s sleep. The MWT consists of four sleep periods with breaks lasting for two hours in between them. For each period, you will sit quietly in bed and try to stay awake for 20-40 minutes.

The Wisconsin Sleep, Inc. laboratory is an independent diagnostic testing facility operated as a joint venture of the University of Wisconsin Medical Foundation, Inc. and Meriter Hospital, Inc. It operates according to the standards required for accreditation (pdf) by the American Association of Sleep Medicine (AASM).