Snoring and breathing pauses

Why a pause matters more than a snore

Snoring is turbulent air moving past soft tissue. It can be loud and harmless. A pause is the airway closing or narrowing enough that airflow stops or drops, usually ending with a gasp or a snort as breathing restarts.

Pauses matter because of what they do to the rest of the night. Each one can pull you out of deep sleep without waking you fully, and a night broken into fragments leaves you tired no matter how many hours you spent in bed.

• Snoring: continuous sound, airway narrow but open
• Pause: sound stops, often ending in a gasp or snort
• The gasp on the way out is frequently the most audible part
• Someone sleeping next to you usually notices pauses before you do

What a phone can actually measure

A microphone hears sound. It can time the silence between snoring episodes, detect the gasp that ends a pause, and count how often that pattern repeats per hour of sleep. That is a real signal and it is worth tracking over time.

What it cannot do is measure airflow, effort or blood oxygen at the moment of the event. A clinical apnea-hypopnea index comes from a sleep study with sensors on your airflow, chest, abdomen and finger. Hypopnea — a partial reduction in airflow without a full stop — is largely inaudible, so no sound-based method can count it.

This is why Loir reports a sound event index rather than an AHI, and says plainly on its accuracy page which of its classes have been measured and which have not. A number with an honest label is more useful than a number that pretends to be clinical.

What blood oxygen adds

If you wear an Apple Watch that records blood oxygen, you get a second and independent signal. Oxygen is measured at intervals through the night rather than continuously, so it will not catch every event, but a pattern of dips below 90% is meaningful in a way that sound alone is not.

Loir shows the night's oxygen curve with the 90% line marked, the lowest reading, the median, and how many samples fell below the threshold. It also reads Apple's own breathing disturbance signal where your watch produces one, and shows it next to its own estimate rather than blending the two.

The signs that mean: see a doctor

No app can diagnose sleep apnea, and this page is not trying to. But there is a well-known cluster of signs that clinicians ask about, and if several of them apply to you it is worth making an appointment rather than buying another pillow.

• Someone has witnessed you stop breathing during sleep
• Loud snoring most nights, in every sleeping position
• Waking with a headache, a very dry mouth or a choking sensation
• Daytime sleepiness that is not explained by short nights
• Falling asleep unintentionally during the day, especially while driving
• High blood pressure, particularly if it is hard to control

Take whatever measurements you have with you. A month of nightly recordings, a chart of the pattern and your own notes give a clinician context that a five-minute conversation cannot.

What to bring to the appointment

A doctor's time is short. What helps is a summary rather than raw data: how many nights were recorded, the average index, the loudest nights, your lowest oxygen readings, what you had marked on the worst nights, and anything a partner has observed.

Loir produces this as a PDF over 7, 15 or 30 days. It states its own method and its own limits on the page, so the clinician can see immediately what the numbers are and are not. It is built to be handed over, not to argue with a specialist.

If a sleep study is offered, take it. A home test or an overnight study measures things no consumer device can, and the point of tracking at home is to get you to that door with useful information, not to replace it.