You can, but please note that the results will be different than if you were not on CPAP.
Are there any contraindications for onesleeptest?
Home sleep tests, such as the onesleeptest, are not recommended if you suffer from the following conditions: Neuromuscular disease, severe COPD, hypoxia and/or hypercapnia at rest, morbid obesity, significant cardiovascular disease and chronic narcotic use. You should speak to your doctor to discuss sleep test options and whether a home sleep test is right for you.