CPAP masks rely on a seal against the face. If your pillow pushes the mask to one side or lifts it off the skin, air leaks occur – reducing therapy effectiveness and causing annoying noises. A pillow that is too high can also force the chin down, worsening airway obstruction. Derila’s medium contour lifts the chin slightly (extension), which may improve airway patency, but the 4.5″ loft may be too high for some side sleepers. The lack of a mask cutout means full‑face mask users may experience leaks.
| Mask Type | Compatibility | Reason | |
|---|---|---|---|
| Nasal mask (e.g., ResMed N20, AirFit P10) | ✅ Good – contour lifts head, minimal mask contact with pillow | Mask sits on the nose; pillow contacts cheeks/forehead, not the mask itself. | |
| Nasal pillows (e.g., ResMed P30i) | ✅ Good – very small profile, unlikely to be dislodged | Minimal surface area; pillow shape doesn’t interfere. | |
| Full‑face mask (e.g., ResMed F20, F30i) | 🟡 Fair – may cause leaks if mask presses into pillow | The chin piece of the mask can be pushed by the contour ridge, causing leaks around the mouth. | |
| Hybrid / under‑nose (e.g., ResMed F30, DreamWear Full) | 🟡 Fair – similar to full‑face | Under‑nose seal can be disrupted by pillow height. |
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Positional therapy.
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