Does Insurance Cover a CPAP? Rules, Rentals, and Costs

Health insurance does cover a CPAP machine for most people diagnosed with obstructive sleep apnea, whether the plan is Medicare, Medicaid, employer or marketplace coverage, TRICARE, or VA benefits. Coverage is conditional, though. You need a qualifying sleep study and prescription to get the machine, and you have to prove you’re actually using it during an initial trial period or the insurer can stop paying.

What You Have to Do Before Insurance Will Pay

A doctor has to evaluate your symptoms and order a sleep study. That study can be done at home with a portable device or in a sleep lab, and insurers often steer straightforward cases toward the cheaper home test first. Patients with heart or lung conditions, or those being evaluated for sleep disorders other than apnea, generally need the full in-lab study.¹

If the study confirms obstructive sleep apnea, your doctor writes a prescription. Insurers decide whether you qualify using the apnea-hypopnea index (AHI), which counts breathing interruptions per hour. The thresholds are largely standardized: an AHI of 15 or higher generally qualifies on its own, and an AHI of 5 to 14 qualifies if you also have symptoms like excessive daytime sleepiness, hypertension, a history of stroke, or impaired cognition.²³ Some plans require prior authorization; others review the claim after the fact.

The Compliance Rule That Decides Whether Coverage Continues

Approval is only the first step. Nearly every insurer requires you to prove consistent use during an initial trial, typically 90 days. The standard benchmark, often called the 4/70 rule, is at least four hours of use per night on at least 70 percent of nights within any consecutive 30-day stretch of that window.⁴ Modern CPAP machines include cellular modems that transmit usage data (hours, mask leak rates, residual apnea events) directly to your equipment supplier and insurer.⁵

Miss the threshold and the consequences are real. Your insurer can stop covering the machine and supplies, you may have to return the device, and you can be left paying the balance yourself. Regaining coverage sometimes means starting over, including a new sleep study.⁵

You Rent the Machine Before You Own It

Insurers classify CPAP machines as durable medical equipment, and most won’t let you buy one outright. Instead they use a rental period of anywhere from 3 to 13 months. You make monthly payments (subject to your deductible and coinsurance) while the insurer monitors your compliance. Stay compliant through the full term and you own the machine.⁶

The monthly amount is just the machine’s total price divided by the number of rental months. A $600 machine on a 12-month rental works out to about $50 a month before your deductible and coinsurance.⁷ Supplies like masks, tubing, and filters are handled separately and bought outright rather than rented.⁶ The upside is that if you can’t tolerate therapy or need a different machine, you aren’t locked into the full price of equipment you can’t use.⁸ The downside is that if you have a high-deductible plan, you may end up paying close to the retail price during the rental anyway because the deductible has to be met before insurance contributes.

How Coverage Works by Plan Type

Medicare

Part B covers CPAP machines, accessories, and supplies for beneficiaries diagnosed with obstructive sleep apnea. You start with a 12-week trial. Between day 31 and day 91 you need an in-person visit with your doctor, who has to document in your medical record that the therapy is working and that you’re meeting adherence requirements.⁹

Pass the trial and the machine enters a 13-month capped rental. After the Part B deductible ($283 in 2026), you pay 20 percent of the Medicare-approved amount and Medicare pays the other 80 percent.¹⁰¹¹ After 13 continuous months of uninterrupted use, the machine is yours. Medicare then covers 80 percent of a replacement every five years and keeps covering supplies indefinitely, as long as the therapy is still effective.¹² Fail compliance in the 90-day window and Medicare can deny later claims; starting a new trial doesn’t restart the capped rental clock.⁹

Medicaid

Medicaid covers CPAP machines in most states, with rules that generally mirror Medicare: the same 12-week trial, the same 4-hour/70-percent compliance rule, and documented symptom improvement confirmed by a doctor or sleep specialist.¹³ If you qualify for both Medicare and Medicaid, Medicare is usually the primary payer and Medicaid picks up remaining out-of-pocket costs.¹⁴ Coverage of accessories like masks and filters is not fully included under every state’s program, so check with your state Medicaid office.

Private and Marketplace Plans

Most employer-sponsored and marketplace plans cover CPAP therapy. What you pay depends on plan design: a deductible, coinsurance (commonly 20 to 30 percent of the equipment cost after the deductible), and sometimes copays.¹⁴ Major insurers like Aetna and UnitedHealthcare publish clinical policies that track Medicare’s AHI thresholds; Aetna, for example, requires an AHI of 15 or higher (with at least 30 events) or an AHI of 5 to 14 with documented comorbidities, and mandates face-to-face re-evaluation to continue coverage.³ Private plans typically apply the same 4-hour/70-percent compliance rule and the same multi-month rental before ownership transfers.⁸

Marketplace plans sold under the Affordable Care Act must cover ten categories of essential health benefits, including rehabilitative and habilitative services and devices. CPAP isn’t named explicitly; specific benefits within each category are set by state benchmark plans, and in practice CPAP coverage is effectively universal across marketplace plans, though cost-sharing varies.¹⁵

TRICARE and the VA

TRICARE covers CPAP machines and supplies with a prescription from a TRICARE-authorized doctor, though it describes the benefit as limited. It does not cover batteries (except for active-duty members who are deployed) or machine cleaners like ozone devices, which it notes are not FDA-approved and may damage equipment.¹⁶ Active-duty service members who travel on official business at least three days a month or are deployed can qualify for a portable CPAP with humidification and battery capability.¹⁷ TRICARE For Life beneficiaries living in the U.S. follow Medicare’s rules.

The VA provides machines and supplies to eligible veterans through an online portal on VA.gov, with reorders generally available every five months and typical arrival in 7 to 10 business days.¹⁸

What Insurance Won’t Pay For

Several CPAP-related items are routinely excluded even when the machine itself is covered:

Travel CPAP machines like the ResMed AirMini or Transcend Micro, treated as convenience items and duplicate equipment, since insurance typically covers only one machine every five years.¹⁹
Comfort accessories such as mask liners, CPAP pillows, and cleaning wipes.¹²
Ozone-based machine cleaners, excluded by Medicare and TRICARE, with many private plans following.¹⁶
Battery backup systems, generally classified as convenience items.²⁰

How Often Insurance Will Replace Your Supplies

Supplies wear out, and most insurers follow Medicare’s replacement schedule. These are the maximum frequencies insurance will pay for, not a recommendation to replace everything on that exact timeline.²¹²²

Nasal cushions or pillows: two per month
Full-face mask cushion: one per month
Disposable filters: two per month
Mask frame: one every three months
Tubing: one every three months
Headgear: one every six months
Chin strap: one every six months
Reusable filter: one every six months
Humidifier water chamber: one every six months
CPAP machine: one every five years

If Your Claim Is Denied

CPAP denials are common enough that roughly half are overturned on appeal, according to patient advocacy organizations.²³ The usual reasons are a finding that the therapy isn’t medically necessary, insufficient documentation, failure to meet clinical criteria, or use of an out-of-network provider.²⁴

All ACA-compliant plans must offer a two-level appeal process:

Internal appeal. You ask the insurer to review the denial. You have 180 days from the denial notice to file. The insurer must respond within 30 days for pre-service claims or 60 days for services already received, and within 72 hours for urgent situations.²⁴
External review. If the internal appeal fails, you can request review by an independent third party whose decision the insurer must accept. This must generally be filed within 60 days of the final internal denial.²⁵

The strongest appeals include a detailed letter from your doctor on medical necessity, your sleep study results, documentation of comorbidities like hypertension or cardiovascular disease, and references to American Academy of Sleep Medicine clinical guidelines. A peer-to-peer review, where your physician speaks directly with the insurer’s medical director, can also help. Your state’s Consumer Assistance Program and the Patient Advocate Foundation are free resources.²³

Paying Out of Pocket Instead

If you don’t have coverage, can’t meet compliance, or just find the insurance path more expensive than paying directly, you can buy a CPAP yourself. A new machine typically runs $500 to $1,000, with some models up to $1,500. BiPAP machines cost $900 to $3,000. Masks add $30 to $200, and annual supply costs run $220 to $1,600 depending on how often you replace components.²⁶²⁷ A prescription is still required, since the FDA classifies CPAP machines as prescription medical devices. Certified refurbished machines go for $200 to $900.

Prices billed to insurance companies are sometimes several times what individual consumers pay at retail. Patients with high deductibles may actually come out ahead buying directly and using HSA or FSA funds.²⁸²⁹³⁰ HSA funds roll over indefinitely; FSA funds usually expire at year end, though some employers allow a limited rollover or grace period.

1
SleepApnea.org. At-Home Sleep Study
2
CMS. CPAP Devices and Accessories Compliance Tips
3
Aetna. Clinical Policy Bulletin – Obstructive Sleep Apnea in Adults
4
Lincare. Sleep Apnea Patients Usage Compliance and Insurance Requirements
5
Frontier Sleep and Wellness. CPAP Insurance Compliance Explained
6
SleepQuest. Insurance PAP Rentals Explained
7
Aeroflow Sleep. Why Do I Have to Rent My CPAP Through Insurance
8
Sound Sleep Health. Does Insurance Pay for a CPAP Machine
9
Noridian Medicare. Positive Airway Pressure Devices
10
Medicare.gov. Continuous Positive Airway Pressure Devices
11
CMS. 2026 Medicare Parts B Premiums and Deductibles
12
Sleep Foundation. How Long Will Medicare Pay for CPAP Supplies
13
HelpAdvisor. Does Medicaid Cover Sleep Apnea
14
SleepApnea.org. Does Insurance Cover CPAP
15
CMS. Essential Health Benefits
16
TRICARE. CPAP FAQs
17
TRICARE. CPAP Machine Coverage
18
VA News. VA Now Offers Online Ordering for CPAP Supplies
19
1st Class Medical. Why Insurance Doesn’t Cover Travel CPAPs
20
Medica. Home Use of CPAP Coverage Policy
21
SleepApnea.org. How Long Will Medicare Pay for CPAP Supplies
22
Lincare. Replace PAP Supplies
23
Counterforce Health. Denied CPAP Coverage – Expert Strategies to Overturn Your Sleep Apnea Insurance Denial
24
CMS. Appeals Process Fact Sheet
25
Healthcare.gov. Appeals
26
SleepApnea.org. How Much Does a CPAP Machine Cost Without Insurance
27
CPAP.com. CPAP Machine Cost
28
Sleep Foundation. Can You Get a CPAP Machine Without Insurance
29
FSAFEDS. HC FSA Eligible Expenses
30
Cigna. Eligible Expenses