Go straight to a marked moment.
Spend your attention on the moments the app flagged, with the rest of the night still in view.
Sleep breathing monitoring
See signs of irregular breathing during sleep.
No need to replay the whole night. Go to marked breathing moments and hear the surrounding sound.
Use your existing compatible phone. No extra device to buy or wear.
Your first complete breathing report is free to view—and stays free to revisit.
No valid report yet? You can try again for free.
Explore the evidence →For iPhone and Android.
Developed through our own research on audio paired with PSG sleep-study breathing labels. Read our methods and what was tested →
Sound-based wellness monitoring. Not a diagnosis or a substitute for a sleep test.
From a night of sound to something you can check
Your night, easier to revisit.
Find the moments worth checking, hear their surrounding sound, then see whether a change appears on other nights.
Listen. Look. Keep a copy.
Follow the waveform, hear the available sound before and after, and save an available audio clip for yourself.
Already replay snoring recordings? Review marked breathing-sound patterns with the sounds before and after.
See how review works →See whether the change comes back.
Compare your own nights instead of relying on how you remember each morning. Breathing observations come first; snoring adds context.
Version 1.2.0 interface examples, not an interactive demo. The screenshots illustrate different views; they are not a matched clinical comparison.
These are model-estimated acoustic patterns, not confirmed clinical breathing events. A recording can miss events or contain no candidates; no candidates does not rule out sleep apnea.
The value of coming back
Was it one different night—or a change that keeps appearing?
Return to a changed night and compare it with your other recordings. If you chose to tag a bedtime change, see whether the observed difference appears again. Keep breathing and snoring separate.
Keep the dates, nightly patterns and comparisons in one PDF, so you do not have to assemble scattered records yourself.
Observed differences do not establish a cause or show that a treatment worked.
User stories
Why we keep a record of our nights
Founder of SomniSense · Two nights from my own records
Within each night, Apple Watch and both phones gave readings in a similar numerical range: 26.28 / 22.1 / 20.7 on the first, then 32.07 / 30.3 / 36.6 on the second. All three were higher on the second night. The phone records gave me marked moments to return to—and a change I could keep following.
Read this night’s story →John, 45 · Software engineer
John was sleeping eight hours but still felt exhausted during the day. He had put it down to work stress. Over seven consecutive nights, he followed his recordings and saw how much one night could differ from another. He began comparing nights alongside changes in his sleeping position, looking for differences he could follow over time.
Sarah, 38 · Marketing manager
Over 14 days, Sarah compared nights with wine and nights without it. On nights when she drank wine, her Breathing Irregularity Index (BRI) was higher. She also noticed brain fog the next morning and found it harder to concentrate in meetings.
John and Sarah are pseudonyms. The founder’s account is his own use of SomniSense.
With SomniSense, review marked moments with sound, then compare your own nights over time.
Start with your question
What would you like to understand about your nights?
Clear evidence. Clear limits.
Built around reviewable observations.
Research you can inspect
Read the sound-analysis research, the tasks tested and their limitations. A research benchmark is not your personal diagnostic accuracy.
The underlying technology is the subject of three U.S. provisional patent applications. Our openly available research preprints describe the audio-analysis methods, evaluations and limitations.
Read the evidence →Your sound stays on your phone
Audio and waveforms stay local, with no cloud recovery. Account and recording results sync for services such as email reports. Exported sound copies are yours to manage.
Read the privacy policy →Know when to seek more
SomniSense does not measure airflow or blood oxygen. If you are concerned about symptoms, speak with a qualified health professional.
Explore the research →Begin with your own night
Make your next sleep more informative.
Put your phone by your bed and review your own night after sleep. Your first complete breathing report is free to view—and stays free to revisit. No valid report yet? You can try again for free.
Recording and analysis stay free. Pro unlocks later complete breathing reports; snoring stays free.
A few practical questions
When is my free breathing experience used?
It is used by your first completed Breathing report showing more than 30 minutes of sleep and detected snoring. Reports before that qualifying recording and the qualifying report itself remain free. A failed recording, a report showing 30 minutes of sleep or less, or a recording with no detected snoring does not use the experience. A recording with no detected snoring does not rule out a breathing problem. A valid report with no breathing candidates still counts; no candidates does not rule out sleep apnea.
Can I record in a shared bedroom or with CPAP?
A bedside phone can capture another sleeper or room and equipment sounds. Place it closer to the person being recorded and review the surrounding sound. SomniSense cannot reliably separate two sleepers or confirm whose sound was captured. Performance with CPAP sound has not been established; do not use this record to judge treatment or change therapy. Two recording apps may compete for microphone access, so simultaneous recording is not guaranteed.
What stays on my phone, and what is synced?
Your audio and waveforms stay on your phone. SomniSense does not provide cloud recovery for them. Account information, access status and recording results are synced as described in the Privacy Policy, including results used for email reports. Audio leaves the phone only when you choose to export or share it. Copies saved outside the app are managed by you.