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How to Get a Sleep Study: Lab vs. Home Test Explained

To get a sleep study, discuss symptoms — snoring, daytime sleepiness, waking up gasping, or unrefreshing sleep — with your primary care clinician. They can order a home sleep apnea test (HSAT) or refer you to a sleep lab for a full overnight polysomnogram. For most adults with suspected obstructive sleep apnea, a home test is the first step.

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Who orders a sleep study?

Your primary care clinician can order a home sleep apnea test directly and refer you to a sleep medicine specialist for a more complex evaluation. You do not need to see a specialist first for a basic sleep apnea workup — starting with your PCP is usually the fastest route 1.

If your PCP suspects a more complex condition — central sleep apnea, hypoventilation, narcolepsy, or restless legs that hasn't responded to initial treatment — they will refer you to a sleep medicine specialist (who may be a pulmonologist, neurologist, or other physician with fellowship training in sleep medicine) for a full polysomnogram.

Home sleep apnea test (HSAT) vs. in-lab polysomnogram: what is the difference?

Home sleep apnea test (HSAT) - Done in your own bed with a portable device that measures airflow, respiratory effort, blood oxygen, and heart rate - Typically available within a few days of ordering - Less expensive than a lab study - Good for adults with a high likelihood of moderate-to-severe obstructive sleep apnea and no major comorbidities - Cannot diagnose conditions other than obstructive sleep apnea (no brain wave or muscle data)

In-lab polysomnogram (PSG) - Overnight study at a sleep center with comprehensive monitoring: brain waves (EEG), eye movements, muscle activity, heart rate, airflow, oxygen, and limb movements - Required for suspected narcolepsy, parasomnias, periodic limb movement disorder, or when HSAT results are inconclusive - More comprehensive but takes longer to schedule and is more expensive - Costs range from $1,000–$3,500 without insurance; with insurance, you typically pay a facility copay or percentage after deductible 1

How to find a sleep lab near you

Your insurance's provider directory and your clinician's referral are the most reliable starting points. The American Academy of Sleep Medicine (AASM) lists AASM-accredited sleep centers at aasm.org, which meet defined quality and safety standards 2.

For a home test, your clinician may use a mail-order device service — several insurers cover home sleep apnea tests when ordered by a licensed provider. Call your insurer to confirm coverage and whether pre-authorization is required.

What to expect at a sleep lab: You arrive in the evening, are set up with painless sensors that monitor brain waves, breathing effort, airflow, blood oxygen, heart rate, and limb movements, and sleep in a private room. The sensors are glued or taped in place and do not prevent normal movement. In the morning you are disconnected and can leave early 3.

What happens if my sleep study shows sleep apnea?

If your home or lab study confirms obstructive sleep apnea, your clinician will discuss treatment options. CPAP (continuous positive airway pressure) is the most effective treatment for moderate-to-severe OSA 2. Your clinician or sleep specialist will prescribe the device and settings, and a durable medical equipment (DME) provider supplies the machine. Insurance typically covers CPAP when the diagnosis meets their clinical criteria.

For mild sleep apnea or positional apnea, alternatives include oral appliance therapy (fitted by a dentist with sleep training), weight management, and positional therapy. A sleep specialist can help you weigh options.

What symptoms suggest I should be evaluated for sleep apnea?

Common reasons clinicians order a sleep study:

  • Loud, frequent snoring — especially with gasping or choking sounds witnessed by a partner
  • Excessive daytime sleepiness despite adequate sleep time
  • Waking unrefreshed, morning headaches
  • Difficulty concentrating or memory changes attributed to poor sleep
  • Hypertension that is difficult to control (sleep apnea is a contributor)
  • BMI above 30 with any sleep-related symptoms
  • Atrial fibrillation (sleep apnea is a known contributing factor)

Common questions

Can I get a sleep study without a referral?

Some home sleep test companies allow direct-to-consumer ordering, but insurance almost always requires an order from a clinician. Starting with your primary care doctor is the most straightforward path to both a proper evaluation and insurance coverage.

How much does a sleep study cost?

A home sleep apnea test typically costs $150–$500 without insurance. An in-lab polysomnogram runs $1,000–$3,500 without insurance. With coverage, your cost depends on your deductible and whether the facility is in-network.

Is a home sleep test accurate?

For diagnosing moderate-to-severe obstructive sleep apnea in otherwise healthy adults, home tests are well-validated and widely used. They can underestimate severity in some cases. A negative home test in a patient with strong clinical suspicion should be followed up with an in-lab study.

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Symptoms that need prompt clinical attention

  • —Waking up gasping for air frequently — especially if you live alone and have no one to report this
  • —Falling asleep while driving or in situations requiring alertness
  • —Stopping breathing during sleep witnessed by a partner

This article is for general informational purposes. Gale does not provide sleep medicine or polysomnography services. A Gale primary care clinician can evaluate your sleep symptoms, order a home sleep apnea test where appropriate, and refer you to a sleep medicine specialist for complex evaluations.

References

  1. 1.Kapur VK, Auckley DH, Chowdhuri S, et al. (2017). Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea: An American Academy of Sleep Medicine Clinical Practice Guideline. Journal of Clinical Sleep Medicine. doi:10.5664/jcsm.6506 ✓AASM recommendation for polysomnography or home sleep apnea testing (HSAT) in adults with suspected OSA; clinical eligibility criteria for HSAT vs in-lab polysomnogram; when to use each test
  2. 2.National Heart, Lung, and Blood Institute (2022). Sleep Studies. NHLBI, National Institutes of Health. link ✓Overview of sleep studies (polysomnography and home sleep apnea testing) including what they measure, why they are ordered, and treatment after a positive result
  3. 3.American Academy of Sleep Medicine (2024). Sleep Study — Sleep Education by the American Academy of Sleep Medicine. sleepeducation.org. link ✓Patient guide to in-lab polysomnography: what sensors are attached, the overnight procedure, what is recorded, and what to expect before and after the study

3 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.