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A home sleep apnea test is a small monitoring device you wear overnight in your own bed. It measures your breathing, your oxygen levels, and sometimes your heart rate while you sleep. The next morning, you return the device, and a Board-Certified Medical Sleep Doctor reads the data and determines whether you have sleep apnea. The whole process is far simpler — and often more comfortable — than the in-lab sleep studies most people picture.
Learn about snoring treatment and home sleep studies at our Centennial dental office →/snore-appliances
What the Test Actually Measures
Home sleep apnea tests, sometimes called HSATs, monitor a focused set of physical signals to determine whether your breathing is being interrupted during sleep. According to the American Academy of Sleep Medicine, these typically include:
• Airflow through your nose and mouth.
• Breathing effort, usually measured with a chest belt.
• Blood oxygen level, measured with a small fingertip sensor.
• Heart rate.
• Body position (whether you're on your back, side, or stomach).
These measurements let the sleep doctor calculate something called the apnea-hypopnea index, or AHI — the number of times per hour that your breathing partially or fully stops. The AHI is the main number that determines whether you have sleep apnea and how severe it is.
How a Home Test Compares to an In-Lab Study
An in-lab sleep study (called polysomnography) is more comprehensive. It measures everything a home test measures plus brain wave activity, eye movement, muscle tension, and sleep stages. That extra data is necessary for diagnosing some conditions — but for uncomplicated suspected sleep apnea, a home test is usually enough.
The AASM recommends home sleep testing only after a clinician has reviewed your symptoms and medical history and determined that you're a good candidate. They also note that home testing isn't right for everyone — people with certain heart, lung, or neurological conditions still need an in-lab study, because the home device can't detect everything an in-lab study can.
Who's a Good Candidate for a Home Test
• Adults with a high suspicion of moderate to severe obstructive sleep apnea.
• Patients without significant other medical conditions.
• People whose symptoms point clearly to airway obstruction (loud snoring, witnessed pauses in breathing, daytime sleepiness).
Who isn't a good candidate: people with serious heart or lung disease, neuromuscular conditions, suspected central sleep apnea, or other sleep disorders that need the additional measurements an in-lab study provides.
What to Expect on the Night of the Test
1. Pick up the device. Our office (or the sleep testing service) provides the equipment and shows you how to put it on. Some devices are mailed directly to your home.
2. Wear it for one to three nights at home. Most home tests use a single night, but multiple nights improve accuracy. You sleep in your own bed, in your normal position, with your normal routine.
3. Return the device. Drop it back at the office or mail it back, depending on the setup.
4. A sleep doctor reads the data. This takes anywhere from a few days to a couple of weeks. They write a formal interpretation and send it to the dentist and to you.
5. Discuss the results. If the test confirms sleep apnea, we review the doctor's recommendations and discuss your options. If the test doesn't show enough data, the sleep doctor may recommend an in-lab study.
What the Results Mean
Sleep apnea severity is measured in events per hour (the AHI):
• AHI under 5: Normal. No sleep apnea on this test.
• AHI 5–14: Mild sleep apnea.
• AHI 15–29: Moderate sleep apnea.
• AHI 30 or higher: Severe sleep apnea.
The severity affects which treatments your sleep doctor recommends. Oral appliance therapy is well-supported for mild to moderate sleep apnea and for moderate-to-severe cases where CPAP isn't tolerated. CPAP is generally the first recommendation for severe cases when it's tolerated.
Common Questions
Is the device hard to set up?
Most patients find it straightforward. The device usually has a chest belt, a nasal cannula (similar to what's used for oxygen in a hospital), and a fingertip oxygen sensor. We walk you through the setup before you take it home.
What if I can't sleep with the equipment on?
Most patients sleep poorly the first night and well enough on subsequent nights. The data from imperfect sleep still tells the sleep doctor what they need to know — the device is measuring what happens when you do sleep.
Will insurance cover the test?
Possibly - many medical insurance plans cover home sleep apnea testing when it's medically indicated. We don't handle medical insurance billing at our office, so payment for the test is collected up front. If your plan covers it, we can provide receipts and documentation so you can submit for reimbursement on your own.
Can the test be wrong?
Home tests can miss mild sleep apnea or produce a non-diagnostic result. When that happens, the sleep doctor may recommend an in-lab study to confirm. The AASM specifically recommends in-lab follow-up after a non-diagnostic home test.
About the Authors
Drs. Bart & James Christiansen, DDS are brothers practicing in Centennial, CO. Bart has been practicing since 1988 and James since 2009. They offer general, restorative, cosmetic, and emergency dentistry for the whole family.
