What to Expect at a Sleep Study - Milwaukee, WI - Ascension Wisconsin

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What to Expect at a Sleep Study

Understanding your body’s response to sleep is important, and getting the right treatment for a sleep condition can help you rest better and improve your overall health.

At Wheaton Franciscan Healthcare, you’ll find the diagnosis you need to get a better night’s sleep. And one of the best ways to get an accurate diagnosis is to take part in a sleep study at one of our advanced Sleep Medicine Centers.

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When You Arrive for Your Sleep Study

Upon arrival for your sleep study, we’ll show you to your comfortable, private room that makes you feel at home with amenities such as:

  • Sleep Number® bed
  • Private bathroom with shower
  • Cozy seating
  • Full wardrobe
  • Desk/Work area
  • Free wireless Internet
  • Flat screen TV
  • DVD player

What a Sleep Test Measures

Your sleep study, or polysomnography, provides key information to your doctor about how your brain and body operate when you’re asleep. This helps your doctor diagnose or rule out a sleep condition. Some information your doctor gathers may include:

  • Brainwave activity
  • Eye movement
  • Blood oxygen levels
  • Heart rate
  • Breathing patterns
  • Airflow through your nose and mouth
  • Muscle and limb movement
  • Muscle tension
  • Snoring

What to Expect During Your Sleep Study

  • A sleep technician will greet you upon your arrival. Your technician will introduce you to your private sleep room and all of its accommodations. Once settled, the technician will ask you to change into your sleepwear.
  • When you are ready, the technician will return to apply electrodes to your body. After some preliminary equipment checks, the technician will turn out the lights. We will begin the test when you’re ready to go to sleep.
  • While in bed, you can move around and adjust your sleeping position.
  • You may get out of bed at any time during the night to visit the bathroom or for any other reason. A sleep technician will be on hand at all times to assist you and to make sure you’re comfortable.

Some sleep studies can be done in the privacy and comfort of your own home. Your doctor will advise you if home-based tests are available for your particular sleep concerns.

Prepare for Your Sleep Study

Get more information about the steps you need to take to prepare for your sleep study.

Types of Sleep Tests

Your Wheaton doctor may recommend one of the following tests to get the information needed to diagnose your condition.

  • Continuous positive airway pressure (CPAP) titration – Calibrates and tests the effectiveness of a CPAP machine, a device that delivers air to you while you’re asleep to help you maintain normal breathing.
  • Split-night study – Uses a CPAP machine for the last half of your sleep study if it’s found you have sleep apnea during the first part of your study
  • Multiple sleep latency test (MSLT) – Measures daytime sleepiness and helps diagnose narcolepsy or excessive sleepiness; often performed in the morning after you wake up.
  • Maintenance of wakefulness test (MWT) – Measures your ability to stay awake.

You can expect to leave the clinic the morning after your sleep study between 6-7 am. unless your study includes additional sleepiness tests. Please let your sleep technician know if you have any time constraints so we can arrange to accommodate your schedule.

The results of your study will not be available that morning. The study will need to be interpreted by a sleep physician and your primary care physician will receive those results. Your technician will provide you with a follow-up instruction sheet before you leave.

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