With insurance, most people pay somewhere between $0 and a few hundred dollars out of pocket for a CPAP machine. The exact amount depends on your plan’s deductible, your coinsurance percentage, and whether you’ve already met your deductible for the year. If you have Medicare, expect to pay 20% of the approved rental cost after your deductible.
What a CPAP Costs Without Insurance
To understand what insurance actually saves you, it helps to know the full retail price. A new CPAP or auto-adjusting (APAP) machine costs between $400 and $1,600 without insurance, with the average device running about $1,000. BiPAP machines, which provide two levels of pressure, start around $900 and can reach $3,000. Certified pre-owned or refurbished machines fall between $200 and $900.
The machine itself is only part of the expense. Masks with headgear run $50 to $200, tubing costs $5 to $50, and smaller items like filters, water chambers, and cleaning supplies add another $30 to $115. These supplies need regular replacement, so the ongoing cost matters just as much as the upfront price.
How Private Insurance Typically Works
Most private insurance plans cover CPAP machines as durable medical equipment once you have a qualifying sleep apnea diagnosis. Your actual out-of-pocket cost hinges on three things: whether you’ve met your annual deductible, your plan’s coinsurance or copay structure, and whether your supplier is in-network.
If you have a $2,000 deductible and haven’t spent anything toward it yet, you could end up paying for most or all of the machine yourself before insurance kicks in. That’s especially true because DME suppliers sometimes charge insurers higher prices than what you’d pay buying a machine directly, which means a higher bill gets applied to your deductible. On the other hand, if your deductible is already met, you might owe only 10% to 30% of the negotiated rate, putting your cost at roughly $50 to $300 for a standard machine.
Some plans require prior authorization before they’ll approve a CPAP. This usually means your doctor submits results from a sleep study showing you meet the severity threshold. Insurers generally require an AHI (apnea-hypopnea index) of 5 or higher, meaning you stop or partially stop breathing at least five times per hour during sleep. Moderate to severe sleep apnea, scored at 15 or more events per hour, is approved more readily. Mild cases (5 to 14 events per hour) sometimes require documentation of symptoms like daytime sleepiness or related health conditions.
What Medicare Covers
Medicare Part B covers CPAP machines, but through a rental arrangement rather than a purchase. You pay 20% of the Medicare-approved amount for the machine rental and related supplies (masks, tubing, filters) after meeting your Part B deductible. Medicare pays the supplier for 13 consecutive months of rental, and after those 13 payments, you own the machine outright.
This means your monthly cost is relatively small, often in the range of $15 to $30 per month for just the machine rental, depending on the model. Over 13 months, your 20% share adds up to roughly $150 to $350 total for a standard CPAP. If you have a Medigap supplemental plan, it may cover part or all of that 20% coinsurance.
The Compliance Rule You Need to Know
Here’s the part that catches people off guard: insurance doesn’t just hand you a CPAP and walk away. Most insurers, including Medicare, require you to prove you’re actually using the machine during the first few months. The standard rule is that you must wear your CPAP for at least 4 hours per night on at least 70% of nights within a consecutive 30-day period. That works out to roughly 21 out of 30 nights.
You have 90 days from the time you receive the equipment to hit this threshold. Modern CPAP machines track your usage automatically and transmit the data to your supplier and insurer. If you don’t meet the compliance requirement, your insurer can stop covering the machine, and you may be required to return it or start paying full price. This is worth taking seriously, especially during the adjustment period when the mask feels unfamiliar.
Ongoing Supply Costs With Insurance
CPAP supplies wear out on a set schedule, and insurance covers replacements at specific intervals. Medicare’s replacement timeline is the most clearly defined and serves as a rough benchmark for many private plans:
- Nasal cushions or pillows: every 2 weeks
- Full-face mask cushion: every month
- Disposable filters: every 2 weeks
- Mask frame: every 3 months
- Tubing: every 3 months
- Headgear and chin strap: every 6 months
- Reusable filters: every 6 months
- Humidifier water chamber: every 6 months
With insurance, you’ll typically owe the same coinsurance percentage on supplies that you do on the machine. For Medicare, that’s 20% of each item. For private plans, check whether supplies apply to your deductible or are covered at a flat copay. Some people find it cheaper to buy basic items like filters and tubing out of pocket rather than running them through insurance, especially if they have a high deductible.
Using an HSA or FSA
CPAP machines and all related supplies qualify as eligible expenses for Health Savings Accounts (HSAs), Flexible Spending Accounts (FSAs), and Health Reimbursement Arrangements (HRAs). This means you can pay your out-of-pocket share with pre-tax dollars, effectively saving 20% to 35% depending on your tax bracket. If you have a high-deductible plan paired with an HSA, this is one of the most effective ways to reduce your real cost.
When Buying Out of Pocket Makes Sense
Insurance coverage sounds like the obvious choice, but it isn’t always the cheapest path. If you have a high deductible you haven’t met, your insurer’s negotiated price for a CPAP may actually be higher than what you’d pay buying one directly from an online retailer. Suppliers sometimes charge insurers $800 to $1,200 for a machine you could buy for $500 to $700 with cash. When that inflated price gets applied to your deductible, you end up paying more and getting no insurance benefit.
The tradeoff is that buying out of pocket means you won’t get insurance help with supply replacements later, and the purchase won’t count toward your deductible. It’s worth calling your insurer to ask what the negotiated rate is for the specific machine you want, then comparing that against retail prices before deciding which route saves you more over the first year.