To qualify for Inspire sleep apnea therapy, you need to meet several criteria: moderate to severe obstructive sleep apnea with an AHI between 15 and 100, a BMI of 40 or less, age 18 or older, and documented failure or intolerance of CPAP. You also need to pass an airway evaluation to confirm your anatomy is compatible with the device. Here’s what each of those requirements actually means and how the qualification process works.
Sleep Apnea Severity Requirements
Inspire is FDA-approved for moderate to severe obstructive sleep apnea, which is measured by your Apnea-Hypopnea Index, or AHI. This number represents how many times per hour your breathing stops or becomes shallow during sleep. To qualify, your AHI needs to fall between 15 and 100. An AHI of 15 is the threshold for moderate sleep apnea, so mild cases don’t qualify.
Your sleep study also needs to be recent. Both Medicare and most private insurers require a polysomnography (overnight sleep study) performed within the last two years. If your most recent study is older than that, you’ll need a new one before moving forward.
One additional detail that trips some people up: central sleep apneas can’t make up more than 25% of your total AHI. Central apneas happen when your brain temporarily stops sending signals to breathe, which is a different mechanism than the airway obstruction that Inspire treats. If a large portion of your breathing events are central rather than obstructive, the device won’t address the underlying problem.
BMI and Age Thresholds
The FDA recently raised the BMI limit for Inspire from 32 to 40, which opened the door for significantly more patients. A BMI of 40 corresponds to roughly 280 pounds for someone 5’10” or 235 pounds for someone 5’5″. If your BMI is above 40, you won’t currently qualify.
The standard age requirement is 22 and older. However, the FDA has also approved Inspire for patients between 18 and 21 with the same AHI criteria (15 to 100). A separate, narrower approval covers teenagers aged 13 to 18 who have Down syndrome and severe obstructive sleep apnea, with a slightly different AHI range of 10 to 50.
You Must Have Tried CPAP First
Inspire is not a first-line treatment. You need to demonstrate that CPAP has either failed or that you can’t tolerate it. The clinical definitions are more specific than you might expect:
- CPAP failure means you used CPAP but it didn’t adequately control your sleep apnea, leaving your AHI above 15 despite regular use.
- CPAP intolerance means you couldn’t use it consistently, defined as being unable to wear it more than 5 nights per week for more than 4 hours per night.
- CPAP unwillingness also counts. If you attempted CPAP and returned the equipment because you simply couldn’t adapt to it, that meets the threshold.
Your sleep medicine provider will need to document this history. If you’ve never tried CPAP at all, most insurers and the FDA indication require that you at least attempt it before pursuing Inspire.
The Airway Evaluation (DISE)
Even if you meet every other criterion, there’s one more step: a procedure called Drug-Induced Sleep Endoscopy, or DISE. This is a brief outpatient exam where a doctor sedates you to simulate natural sleep, then passes a thin camera through your nose to observe how your airway collapses.
Inspire works by stimulating the nerve that controls your tongue, pushing it forward to keep the airway open. For this to be effective, your airway needs to collapse in a front-to-back pattern. If your airway collapses in a complete circular pattern (called complete concentric collapse), the tongue stimulation won’t solve the problem, and you won’t qualify. Research has consistently shown that patients with this collapse pattern have poor outcomes with the device. All other collapse patterns, including front-to-back collapse at various locations in the airway, are compatible with Inspire.
Other Conditions That Disqualify You
Several additional contraindications can rule you out:
- Other implanted devices: If you have a pacemaker, defibrillator, or another implanted electronic device that could interact with the Inspire system, you may not be eligible.
- Pregnancy: Patients who are pregnant or planning to become pregnant are not candidates.
- Need for MRI: Certain MRI scans may be incompatible with the implant, which is worth discussing with your provider if you have ongoing conditions requiring regular imaging.
- Neurological conditions: Any condition that has compromised nerve control of the upper airway muscles is a contraindication, since the device relies on nerve stimulation to work.
- Inability to use the remote: Inspire requires you to turn the device on and off each night with a small handheld remote. If you’re unable to operate it independently or with assistance, you won’t qualify.
Insurance Coverage and Medicare
Medicare covers Inspire if you meet the clinical criteria: a sleep study within the last two years showing moderate to severe obstructive sleep apnea, documented CPAP failure or intolerance, and age over 22. Under original Medicare Part B, you’ll need to meet the annual deductible ($283 in 2026) before coverage kicks in. If you have a Medicare Advantage plan, coverage details vary by insurer, so you’ll need to verify with your specific plan.
Most major private insurers also cover Inspire, but prior authorization is almost always required. This means your doctor’s office will need to submit documentation of your sleep study results, CPAP history, DISE findings, and BMI before the insurer approves the procedure. The documentation process can take several weeks.
What Results to Expect
Registry data from over 1,100 patients shows that Inspire typically reduces AHI by a median of about 18 to 19 points for patients starting with an AHI of 65 or below. For patients with more severe apnea (AHI between 65 and 100), the median reduction is around 61 points. In patient surveys, 91% of Inspire users said they preferred it over CPAP.
These numbers are medians, meaning half of patients do better and half do worse. Your results will depend on your anatomy, your starting severity, and how consistently you use the device each night. The implant itself involves a short surgical procedure, typically under general anesthesia, with most people returning to normal activities within a few days to a couple of weeks.