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Information for Scheduled Patients

A polysomnogram is a procedure which measures bodily functions during sleep. Each study will vary depending on the individual case, and some of the measurements taken may include:

  • Brain waves
  • Heart beats
  • Eye movements
  • Muscle tension
  • Leg movements
  • Airflow breathing
  • Chest and abdominal breathing

Why record all these things?

During sleep the body functions are different than while awake. Disrupted sleep can disturb daytime activities, and sometimes medical problems during sleep involve a risk to basic health.

How will I sleep through all these tests?

Most people sleep reasonably well during a sleep study. We are only looking to obtain a sample of your sleep. The body sensors are applied so that you can turn and move during sleep. The entire procedure is painless. Our staff will try to make your sleeping environment as comfortable as possible.

What should I do to prepare for my sleep monitoring test?

  • Do not drink coffee or other caffeinated drinks for two days before your test. Switch to decaffeinated drinks.
  • Avoid alcoholic beverages on the day of your test.
  • Try to maintain your normal daytime schedule. Avoid unusual physical exercise or unusually large meals.
  • Do not take naps if at all possible on the day of your test.
  • Please shampoo your hair before you come in for the test. Do not use heavy make-up, hair spray, or hair oils (conditioners, vaseline, styling gels) which interfere with the quality of the recording.
  • Remove acrylic nails and/or nail polish.

What should I bring with me to the clinic?

  • Your completed Sleep Disorders Laboratory Sleep Questionnaire CLICK HERE to download this packet.
  • You may bring your own pillow.
  • Your regular medications. Bring enough to take them on the same schedule you do at home.
  • Please bring Tylenol and/or antacids. These are not available for the staff to dispense to you if you need them.
  • Bed clothes (preferably two-piece pajamas), robe and slippers.
  • A breakfast and lunch tray are provided. If you are on a diabetic diet or any other special diet, please call us to let us know in advance so a proper breakfast and lunch tray are ordered.
  • Money for the vending area or newspapers.
  • Something to read or work on while awake during the non-sleep periods.
  • A change of clothes for the next day.
  • Toiletries or personal hygiene items, i.e. soap, shampoo, razor, and toothbrush.
  • We will provide towels and bedding. Private shower and toilet facilities are provided.
  • Please refrain from wearing any necklaces, bracelets, watches or earrings due to the placement of electrodes.

Please note: There is no smoking allowed on the hospital grounds. Please discuss this with your technologist upon arriving for your sleep study.

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St. Joseph Mercy Chelsea | 775 South Main Street, Chelsea, MI 48118 | 734-593-6000