Sleep data and AHI
CPAP Compliance Hours Not Counting: What Counts for Insurance
For Medicare, adherence means using PAP at least 4 hours per night on 70% of nights during a consecutive 30 day period anytime during the first 3 months. Only time with the mask on and therapy running counts, so mask off time, short nights and data that did not upload can leave you short. Check your data early and tell your provider if numbers look wrong.
Signs
- Provider says you are not meeting compliance
- Usage hours lower than the time you spent in bed
- Nights missing from your record
- Under 4 hours on many nights
Common causes
- Mask off time
- Time with the machine running but the mask off does not count, according to the Sleep Foundation.
- Nights under 4 hours
- The Medicare standard counts nights of 4 hours or more. Shorter nights do not count toward the 70%.
- Data not transmitting
- Weak signal, airplane mode or a locked SD card can keep data from reaching your provider.
- Discomfort that cuts nights short
- Leaks, dryness, claustrophobia or pressure discomfort lead many people to take the mask off early.
Fixes to try, easiest first
Know the target
Medicare's LCD L33718 defines adherence as use of PAP 4 or more hours per night on 70% of nights during a consecutive thirty day period anytime during the first three months. Private insurers often use similar rules; ask yours.
Check your daily data
Use your machine's display or app to see hours each night. Catching a problem in week one is far easier than in week ten.
Put the mask back on
If you wake without the mask, put it back on. Every hour of mask on time counts.
Fix connectivity
Make sure the machine has signal and is not in airplane mode so your data reaches your provider.
Use CPAP for naps too
NHLBI recommends using your PAP machine for all sleep, including naps. It also adds to your total use.
Fix the comfort problem
If you cannot reach 4 hours, find out why: leaks, dry mouth, claustrophobia or pressure discomfort each have fixes on this site.
Call your provider early with your clinician
If you are falling short, tell your equipment provider and doctor before the deadline. Medicare requires a clinical re-evaluation between the 31st and 91st day, and they may be able to help with mask or comfort changes.
Talk to your doctor if you cannot reach 4 hours a night because of discomfort, if you are taking the mask off without remembering, or if you are close to the end of your trial period without meeting the requirement. Your doctor can address the cause and document your progress.
Supplies that can help
A pillow with cutouts or a contoured edge so a mask and hose are not pushed out of place when you sleep on your side.
A soft strap that supports the jaw to help keep the mouth closed, used mainly with nasal and nasal pillow masks to reduce mouth leaks.
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Mask types this applies to
Frequently asked questions
What is the Medicare CPAP compliance rule?
Medicare defines adherence as using PAP 4 or more hours per night on 70% of nights during a consecutive 30 day period anytime during the first 3 months. That works out to 21 of 30 nights. Your doctor also needs to see you in person to confirm your symptoms improved.
Does time with the mask off count?
No. Only time with the mask on and therapy running counts toward your usage. If you remove the mask in your sleep, those hours are lost.
What happens if I do not meet compliance?
Under Medicare rules, continued coverage of the device and supplies can be denied. Talk to your provider early if you are struggling.
Sources
Last reviewed October 11, 2026. How we research · Report an error