Home » Patients » CPAP Titration Study
September 2020 |  Reviewed by:  Imran Shaikh, MD and John Saito, MD

What is a CPAP titration study?

A CPAP titration study is an overnight sleep study used to properly set continuous positive airway pressure (CPAP) therapy. CPAP is a common treatment used to manage sleep-related breathing disorders including sleep apnea, hypoventilation, and hypoxemia. Once you are diagnosed with one of these disorders, you may need a CPAP study before you can begin treatment.

In some cases, members of the sleep team may perform a CPAP titration study on the same night as a sleep study. This is known as a split-night sleep study. The CPAP titration occurs in the second half of the night. This is usually only offered if the sleep apnea is severe and the diagnosis is clear.

In more mild cases, the CPAP titration study may occur after a physician reviews the results of the sleep study. The doctor will decide if you need to come in for a CPAP study.

How to prepare for a CPAP titration study?

A CPAP titration study involves an overnight stay at a sleep center, hospital or a special hotel room. The testing environment is set up so you will be comfortable during your stay.

On the day of your sleep study:

  • Follow your normal routine as much as possible
  • Avoid napping
  • Avoid caffeine after lunch
  • Avoid using hair sprays or gels that can interfere with the sleep recording

If you are on a regular medication, speak with your sleep doctor, who may recommend you stop taking the medication temporarily.

When it is time to report for your CPAP titration study, bring any items that you need for your nightly routine. Prepare for the sleep study as if you are staying at a hotel for a night. Guests are usually not allowed. You may want to bring:

  • Comfortable pajamas or clothes to sleep in
  • A toothbrush, toothpaste and dental floss
  • Makeup remover
  • Reading material
  • Clean clothes for the morning

What is the testing process for a CPAP titration study?

During a CPAP titration study, members of the sleep team will calibrate your CPAP. The goal is to find the right amount of air pressure to prevent your upper airway from becoming blocked. This eliminates breathing pauses in your sleep.

When you show up for the study in