Getting a sleep apnea test typically starts with your primary care doctor, who can either order a home sleep test directly or refer you to a sleep specialist. In many cases, you can also skip the in-person visit entirely and use a telehealth service that ships a testing device to your door. The process is simpler than most people expect, and the two main testing options each take just one night.
Start With Your Doctor or a Sleep Specialist
The most common route begins with telling your primary care doctor about your symptoms. They’ll ask about your sleep history, and a bed partner or housemate who has noticed your snoring or breathing pauses can provide useful information at this appointment. From there, your doctor may order a home sleep test themselves or refer you to a sleep center for further evaluation.
If your doctor suspects uncomplicated obstructive sleep apnea, you may go straight to a home test without needing a specialist visit first. If there are complicating factors, like heart disease, respiratory conditions, or signs of a different sleep disorder, you’ll likely be referred to a sleep specialist who can determine the right type of study.
Screening Yourself Before the Appointment
A widely used screening tool called the STOP-BANG questionnaire can help you gauge your risk before you ever see a doctor. It asks eight yes-or-no questions covering snoring, daytime tiredness, observed breathing pauses during sleep, high blood pressure, BMI over 35, age over 50, neck circumference of 16 inches or more, and male sex. Each “yes” scores one point. A score of 5 or higher is a strong indicator of moderate to severe sleep apnea. Even a lower score doesn’t rule it out, but walking into your appointment with this information can speed things along.
Home Sleep Test: What to Expect
A home sleep apnea test is a simplified breathing monitor you wear for one night in your own bed. It does not measure sleep itself. Instead, it tracks breathing pauses, how much effort your body uses to breathe, whether your breaths are deep or shallow, and your blood oxygen levels.
The setup involves a few small sensors. A probe clips onto your finger to measure oxygen. A nasal cannula (a small tube that hooks around your ears and sits at your nostrils) tracks airflow. Additional sensors attach to your chest and abdomen to detect their rise and fall as you breathe. The equipment is far less cumbersome than a full lab setup, and most people can manage it on their own after brief instructions.
Home tests work best for people suspected of having moderate to severe obstructive sleep apnea without other complicating medical conditions. If a home test comes back negative or inconclusive in someone who clearly has symptoms, doctors will typically follow up with an in-lab study to get more detailed data.
In-Lab Sleep Study: When and Why
An in-lab sleep study, formally called polysomnography, is the more comprehensive option. You spend one night at a sleep center where technicians monitor your breathing, brain waves, heart rhythms, and body movements. The room is set up to resemble a bedroom, though you’ll have more sensors attached than a home test requires.
You don’t need a perfect night’s sleep for the results to be useful. The test’s primary goal is to gather data about your breathing patterns and body responses during whatever sleep you do get. Most people sleep enough for a reliable reading, even if it feels like an unusual night.
An in-lab study is the right choice if you have cardiovascular disease, respiratory conditions, use opioid medications, experience severe insomnia, or if your doctor suspects something beyond straightforward obstructive sleep apnea. It can also diagnose other conditions like narcolepsy, sleepwalking, and REM sleep behavior disorder, which home tests cannot detect.
Telehealth and Direct-to-Consumer Testing
If getting to a doctor’s office feels like a barrier, telehealth platforms now offer sleep apnea diagnosis remotely. Services like Ognomy Sleep let you schedule a video consultation with a board-certified sleep specialist, who can then ship a home testing device to you. After your test night, the same provider reviews the results, discusses a care plan, and can prescribe treatment if needed. The entire process happens without an in-person visit.
These services typically accept insurance, though coverage varies. They’re a practical option if you live far from a sleep center, have a demanding schedule, or simply want to move through the process faster.
How Results Are Scored
Sleep apnea severity is measured by the Apnea-Hypopnea Index, or AHI, which counts how many times per hour your breathing partially or completely stops during sleep. Harvard Medical School’s Division of Sleep Medicine classifies the results like this:
- Normal: fewer than 5 events per hour
- Mild: 5 to 14 events per hour
- Moderate: 15 to 29 events per hour
- Severe: 30 or more events per hour
Your AHI score directly shapes what treatment options your doctor recommends. It also matters for insurance purposes, since many insurers require a specific AHI threshold before they’ll cover a CPAP machine or other therapies.
Insurance and Cost
Most insurance plans, including Medicare, cover sleep apnea testing. Medicare Part B covers all four types of sleep tests (ranging from comprehensive in-lab studies to simpler home devices) as long as you show clinical signs of sleep apnea and your doctor orders the test. Private insurers generally follow similar rules: you need documented symptoms and a physician’s order.
The key requirement across nearly all plans is that a licensed provider must order the test. Self-purchased consumer devices that aren’t prescribed typically won’t count toward a diagnosis or qualify for insurance reimbursement. If cost is a concern, confirm coverage with your insurer before scheduling, and ask whether they require a referral to a sleep specialist or will accept an order from your primary care doctor.
How to Prepare for Test Night
Whether you’re testing at home or in a lab, the preparation is the same. Avoid caffeine and alcohol during the afternoon and evening before your test. Both substances alter sleep patterns and can worsen or mask symptoms, skewing your results. Skip any afternoon naps that day so you’re tired enough to fall asleep at a normal time. Continue taking your regular medications unless your doctor specifically tells you to pause something.
For a home test, give yourself a few extra minutes before bed to set up the sensors. Read the instructions ahead of time rather than figuring them out when you’re already sleepy. For an in-lab study, bring whatever you normally sleep in and any items from your bedtime routine (a book, your own pillow) that help you feel comfortable. Arrive at the sleep center in the evening, and plan to leave the next morning. Most people are out by 6 or 7 a.m.