CPAP Masks: How to Pick Between Nasal, Pillow, and Full Face
By Treatments for Sleep Apnea · Published June 8, 2026
The CPAP mask is the part of the setup people actually quit over. The machine hums along quietly in the background, but the mask is strapped to your face for seven hours, and a bad fit is the reason a lot of machines end up in a closet. Picking the right style up front saves you weeks of frustration.
The three mask types, and who each one suits
There are three broad categories, and the choice is less about brand and more about how you breathe and how much pressure you are on.
Nasal masks
A nasal mask covers the nose with a triangular cushion. It is the middle-ground option: more stable at higher pressures than a pillow mask, less bulky than a full face. If you breathe through your nose and want one dependable default, start here.
Nasal pillow masks
A pillow mask seals at the nostrils with two small silicone cones and skips the bridge of the nose entirely. People who feel claustrophobic, wear glasses in bed, or read before sleep tend to like it. The trade-off: at higher pressures the direct airflow can feel like a leaf blower in each nostril, and it can dry you out.
Full face masks
A full face mask covers both the nose and mouth. It is the practical answer for mouth breathers and for people on higher pressures, since it keeps working even when your jaw drops open. It is the largest of the three, so it takes the most getting used to.
Stopping leaks and red marks
A leak is almost never fixed by tightening the straps. Cranking them down deforms the cushion and breaks the seal somewhere else. Fit and comfort drive whether people stick with therapy [AASM] , so this part is worth getting right.
Fit the mask lying down, in the position you actually sleep in, with the machine running. Your face changes shape when you lie on your side, and a mask that seals perfectly while you sit up will gap the moment your cheek hits the pillow. If you wake up with deep red lines, a fabric liner or a different cushion size usually fixes it faster than any strap adjustment.
The cushion is a consumable. Silicone hardens with skin oils and heat, and a cushion that looks fine can still have stopped sealing. Swapping it on a schedule is the cheapest fix for the most common complaint.
How this fits with the rest of your setup
Your mask choice is downstream of your pressure, which comes from your titration or your auto-adjusting machine. If you are still sorting out the machine side, start with how modern CPAP machines work and come back to mask style once you know your pressure range.
Disclosure: This article contains affiliate links. If you buy through them we may earn a small commission at no extra cost to you. We only recommend accessories we would use ourselves. This is not medical advice.
| Accessory | Why it helps | |
|---|---|---|
| Replacement mask cushions (your model) | The single highest-impact swap for leaks; keep a spare on hand. | Check price |
| CPAP chin strap | Helps if you use a nasal mask but your mouth falls open at night. | Check price |
| Mask liners (fabric barrier) | Cuts down on red marks and skin irritation from the silicone. | Check price |
Frequently asked questions
Which CPAP mask is best for mouth breathers?
A full face mask is usually the better starting point if you breathe through your mouth at night, because it delivers pressure to both the nose and mouth. Some people pair a nasal mask with a chin strap instead, but that adds another thing to fuss with.
Why does my CPAP mask leak?
Most leaks come from the wrong size, an old cushion that has lost its seal, or straps cranked too tight. Over-tightening deforms the cushion and makes leaks worse, not better. Replace the cushion every few weeks and re-fit while lying down in your normal sleep position.
How often should I replace my CPAP mask?
A common replacement rhythm is cushions every 2 to 4 weeks and the full mask frame every 3 months, though this varies by product and insurance. Soft silicone hardens and stops sealing well long before it looks worn out.
Do I need a prescription for a CPAP mask?
In the United States, masks are generally sold without the prescription that the machine itself requires, but you still need to know your pressure and fit. Buying the wrong size is the most common and most avoidable mistake.