What is a CPAP and do I have to use it forever?
Last updated September 3, 2026.
A CPAP is a bedside machine pushing gentle air pressure through a mask to hold your airway open - no drugs, no surgery. NHLBI notes the fast wins: better sleep, less snoring, less daytime sleepiness within days, plus long-term heart and brain protection. Masks feel alien for a week or two; comfort fixes solve most of it - tell the clinic, do not suffer. Forever is the default while the cause persists, but major weight loss, positional treatment, oral appliances, or surgery change the picture for some - confirmed by a repeat sleep study. Benefits track with nightly hours on the mask.
What to do
- Push through the first two weeks. The alien-mask feeling fades; most people adapt.
- Report discomfort immediately. Mask styles, humidity, and ramp settings fix most problems.
- Aim for every night, whole nights. Benefits track with hours on the mask.
- Retest after big changes. Major weight loss: ask whether a repeat study changes the prescription.
Related questions
- Why do I snore and when is it apnea?
- Can I do a sleep study at home?
- What is a sleep study like?
- How much sleep do I actually need?