If your doctor or insurance company has asked for a "CPAP compliance report" and you've stared at the numbers wondering what any of it means — you're not alone. Most CPAP users are handed a machine, told to use it, and then asked months later to prove they've been using it correctly. Nobody explains the numbers.
This article walks you through exactly what's in a CPAP data report, what each metric is measuring, and what "compliance" actually means in the context of insurance and clinical follow-up.
Medical disclaimer: AirwayLab is a data-visualization tool, not a medical device. Nothing in this article constitutes medical advice. Always discuss your therapy data and any questions about your treatment with your prescribing physician or sleep specialist.
What Is a CPAP Compliance Report?
A CPAP compliance report is a summary of how you've been using your CPAP or BiPAP machine, pulled from the data stored on your device's SD card or transmitted via the manufacturer's cloud app (like ResMed's myAir or Philips DreamMapper).
The report captures session-level data: when you used the machine, for how long, and how the machine behaved while you were asleep. Most devices record this data automatically — you don't need to do anything to generate it.
Your doctor uses this data at follow-up appointments to see how therapy is going. Your insurance company uses a subset of it to confirm that you're meeting coverage requirements.
The Key Metrics in Your Report
Here's what you'll actually see, and what each number represents.
AHI (Apnea-Hypopnea Index)
AHI is the number of apneas (complete pauses in breathing) and hypopneas (partial reductions in airflow) recorded per hour of sleep, as detected by your CPAP device.
Your CPAP machine estimates AHI based on the airflow it measures through the mask circuit. Device-reported AHI is a machine estimate — not the same as a lab-measured AHI from a polysomnography study. The machine is using pressure and flow data to infer events, which is useful context but not a clinical diagnosis.
Your device reports a residual AHI — the events recorded while CPAP therapy was running. A lower residual AHI is the figure your insurer reviews for coverage purposes — your clinician can put that number in context.
Usage Hours
This is the simplest metric: how many hours per night you actually used the machine. Most devices log usage from when air starts flowing to when it stops.
Why this matters for insurance
US insurance companies and many employer wellness programs typically require at least 4 hours of use per night on at least 70% of nights over a 30-day period. This is the Medicare compliance threshold, and most private insurers follow a similar standard. If usage hours fall below this threshold, coverage for CPAP supplies or replacement equipment may be affected. If your data is borderline, talk to your DME supplier and prescribing physician.
Mask Leak Rate
Your mask needs to maintain a seal for the device to work as intended. "Unintentional leak" (or "large mask leak") refers to air escaping around the mask seal — not the intentional exhalation vents built into every CPAP mask.
Leak rate is measured in liters per minute (L/min). Your device manual or clinical documentation will specify the threshold for your particular model. High leak data in your report can prompt your doctor to look at mask fit or recommend a refitting appointment.
Events Per Hour / Event Breakdown
Some reports break down residual AHI further — separating obstructive apneas (OA), central apneas (CA), hypopneas (H), and flow limitations. BiPAP devices often also report RERAs (respiratory effort-related arousals).
These breakdowns describe the character of any residual breathing disruptions recorded during the session. Interpreting what that breakdown means clinically — and whether any follow-up is needed — is a conversation for you and your sleep physician.
Pressure Data
If you're on a fixed-pressure CPAP, your prescribed pressure is constant and won't vary night to night. If you're on APAP (auto-adjusting), your report will show the pressure range the device used — typically the 95th percentile (P95) and median pressure. This gives your doctor a record of how the machine was responding on a nightly basis.
What "Compliance" Actually Means for Insurance
The word "compliance" gets used in two ways, and it's worth keeping them separate.
Insurance compliance
Mechanical: did you use the machine enough? The US standard is at least 4 hours of use per night, on at least 70% of nights, measured over any 30-consecutive-day period. This threshold is the Medicare benchmark, and most private insurers use the same or similar standard. Compliance is typically verified 90 days after your initial CPAP setup. Ongoing coverage for resupply and equipment renewals can depend on meeting this threshold.
Clinical compliance
A broader term your doctor uses — it refers to the overall picture of how therapy is going: AHI trends over time, leak patterns, symptoms, how you feel. It involves more than just hours logged.
If you're worried about your insurance status, the right first call is to your DME (durable medical equipment) supplier and your prescribing clinician. They have access to your full compliance record and can help you navigate coverage requirements.
How to Pull Your Own Compliance Report
You don't need to wait for your doctor to access this data. Both major manufacturers offer ways to view your own summary.
ResMed devices (AirSense 10, AirSense 11, AirCurve)
- Log in to myAir (resmed.com/myair) — usage hours, AHI, and leak data are displayed on your dashboard
- For more detailed data, export your SD card and load it into OSCAR or AirwayLab
Philips Respironics devices (DreamStation, System One)
- DreamMapper provides a basic cloud dashboard
- For detailed session data, OSCAR (free, open-source) reads Philips SD cards
For the most granular data — flow waveforms, pressure graphs, RERA counts — the SD card route gives you the full record of what the machine captured.
How AirwayLab Shows You This Data
AirwayLab brings together your compliance metrics, nightly AHI data, leak trends, and event breakdowns into one dashboard — the same underlying data that goes into your doctor's report, formatted so it's readable without a clinical background.
Usage and AHI trends
AirwayLab plots your nightly usage hours and AHI across all sessions on the SD card. Trends across multiple nights are easier to spot in a chart than in your device's rolling 7-day average.
Event type breakdown
AirwayLab separates obstructive and central events across your sessions. Knowing how that ratio changes over time is useful context to bring to a clinician review.
Beyond the compliance report
The four AirwayLab analysis engines run on your raw flow waveform — not just the device-reported events. This gives you access to flow limitation scores, breathing regularity analysis, and RERA-related pattern detection that are invisible in your nightly compliance summary. All of it runs entirely in your browser; your data never leaves your device.
AirwayLab shows you all of this in one dashboard — upload your SD card or ResMed myAir data to get started. It's free, and always will be.
Before You Interpret Your Numbers
The data in your report is a record of what the machine measured — not a verdict on how you're doing. A single night with a higher AHI, a flagged leak, or a pressure range that looks unfamiliar doesn't tell you much on its own. Trends over time matter more than any individual reading, and context matters most of all.
If you see something in your data that concerns you — a spike in events, a persistent leak flag, an unusual pressure pattern — bring it to your sleep physician or prescribing clinician. They can interpret it alongside your full clinical history and symptoms.
AirwayLab helps you see your data clearly. What to do with it is a conversation for you and your doctor.
Frequently Asked Questions
What is a CPAP compliance report?
A CPAP compliance report is a summary of your therapy usage data — how often you used the machine, for how long, and key metrics like AHI and leak rate. It's generated from your device's SD card or cloud app data. Your doctor uses it to review therapy progress; your insurance company uses it to verify coverage requirements.
How many hours do I need to use my CPAP to be compliant?
The US Medicare standard — and the benchmark most private insurers follow — is at least 4 hours of use per night on at least 70% of nights over a 30-day period. If you fall below this threshold, coverage for equipment and supplies may be affected. Your DME supplier can pull your detailed usage record if you need to review your status.
What AHI does my insurance company look at?
Insurers typically look at your residual AHI — the events recorded while therapy was running — as a favorable data point in compliance reviews. Your clinician can put your specific number in context and explain what it means for your care.
What does "large mask leak" mean on my CPAP report?
A large mask leak flag means unintentional air escaped around your mask seal beyond the threshold your device uses to flag data-quality concerns. High or persistent leak can reduce the reliability of AHI readings for that session and may prompt your doctor to review mask fit. Your clinician can help assess recurring leak flags in your specific context.
Can I access my own CPAP compliance data?
Yes. ResMed users can view a summary in the myAir app, or export their SD card for detailed data. Philips DreamStation users can use DreamMapper for cloud summary data, or OSCAR (free, open-source) for full SD card data. AirwayLab reads ResMed SD card data directly in your browser — no upload required.
What is the difference between CPAP compliance and CPAP effectiveness?
Compliance (for insurance purposes) is largely about usage hours — did you use the machine enough. Clinical effectiveness is a broader judgment that includes AHI trends, leak patterns, and how you actually feel. Compliance is a prerequisite for coverage; effectiveness is what your clinician evaluates at follow-up.
Does AirwayLab show my compliance data?
Yes. AirwayLab reads your usage hours, AHI, event breakdowns, leak rate, and pressure data from your ResMed SD card and displays it in one dashboard — the same data that goes into your doctor's compliance report. It also runs four additional analysis engines on your raw flow waveform, surfacing metrics like flow limitation scores and RERA-related patterns that don't appear in standard compliance reports. Everything runs in your browser; your data never leaves your device.
See Your CPAP Report in One Dashboard
AirwayLab shows you all of this in one dashboard — upload your SD card or ResMed MyAir data. It's free, browser-based, and your data never leaves your device.
Related reading
What Does My CPAP AHI Number Mean? — a plain-language guide to the metric at the centre of your report.
CPAP Leak Rate: What It Means and When to Worry — understanding unintentional leak and what the data shows.
What Are RERAs? — the breathing events your compliance report doesn't count.
CPAP Compliance Tracking — how to track usage trends and what to do if you're falling short.
AirwayLab is a data-visualization tool, not a medical device. The metrics described in this article are data recorded by your CPAP device. Nothing on this page constitutes medical advice — always discuss your therapy data and any questions about your treatment with your prescribing physician or sleep specialist.