Using CPAP
How to Tell if Your CPAP Is Working
It is not always obvious whether CPAP is doing its job. Combining how you feel, what your bed partner notices and your machine's data gives a good picture. Here is what to look for and when to ask for a check.
How you feel
Many people notice they wake up more refreshed, have fewer morning headaches, feel more alert during the day, and get up less often to urinate at night. Some feel a difference within days, others over a few weeks. If you had little sleepiness before treatment, the change may be subtle.
What your partner notices
Snoring should stop or nearly stop with a well-fitted mask at the right pressure. Your partner should no longer notice pauses in breathing, gasping or choking. Snoring through the mask can be a sign the pressure needs reviewing or that the mask is leaking.
What your data shows
- Usage: are you wearing it most of the night, every night?
- Residual AHI: many clinicians aim for under 5 events per hour.
- Leak: low leak makes the data more reliable and therapy more effective.
Look at trends over a week or more.
Health markers
Treating sleep apnea may help with blood pressure in some people, especially with good adherence. Your doctor may monitor blood pressure and other health measures over time. Improvements vary from person to person.
When your clinician may test further
If symptoms persist, your data looks off, or something changes (such as weight, new medicines or new health problems), your clinician may recommend a repeat sleep study or a titration study to fine-tune treatment.
Frequently asked questions
How do I know if my CPAP pressure is right?
Good signs are no snoring, a residual AHI under 5, low leak and feeling better. If not, your clinician can review your data or order a titration study.
Is it normal to feel worse when starting CPAP?
Some people sleep poorly for the first few nights while adjusting. If you are still struggling after a couple of weeks, contact your sleep team.
Should I still snore with CPAP?
Usually not. Snoring through the mask may mean a leak or a pressure that needs review. Tell your clinician.
Sources
This page is general information, not a diagnosis or medical advice. Read our medical disclaimer.