Blog

Snoring vs Sleep Apnea: The Difference on a Recording

By · Published · 7 min read
A night timeline with an even band of snoring, a flat 12-second gap, then a tall spike marked as a gasp.

Snoring is noise. Sleep apnea is breathing that stops. On a recording, plain snoring is a steady, rhythmic sound that runs for minutes. Obstructive sleep apnea has a different shape: snoring that grows louder, a silent gap of 10 seconds or more, then a snort or gasp as breathing restarts. That gap, repeated many times an hour, is the difference. A phone recording can show you the pattern; only a sleep test can tell you whether your oxygen dropped.

Key facts
  • An apnea is a pause in breathing of at least 10 seconds; 5 to 14 events an hour is mild, 15 to 29 moderate, 30 or more severe (AASM scoring, Kapur 2017)
  • An estimated 29.4 million US adults, about 12%, have obstructive sleep apnea, and close to 80% have never been tested (AASM / Frost & Sullivan 2016)
  • About 25 to 50% of adults snore regularly; most of them do not have apnea (sleepapnea.org, citing UpToDate 2025)
  • A STOP-BANG score of 3 or more means intermediate risk; 5 to 8 means high risk (Chung 2016)
  • A home sleep apnea test costs roughly $150 to $400 cash in the US; an in-lab study often costs $1,000 or more (approximate, 2026 price lists)

Does everyone who snores have sleep apnea?

No. Between a quarter and half of adults snore regularly, while about 12% of US adults are estimated to have obstructive sleep apnea. Most snorers do not have apnea.

The reverse is closer to true: loud, frequent snoring is the most common sign of OSA, and most people with OSA snore. NHLBI puts it simply: if someone tells you that you snore or gasp for air during sleep, talk to your healthcare provider.

What does sleep apnea sound like on a recording?

Sleep apnea sounds like a cycle: snore, silence, gasp, snore. Plain snoring on a night timeline is an even band of sound, often 20 minutes at a stretch. The apnea pattern looks like this:

  1. Snoring that gets louder over several breaths, sometimes with a choking edge.
  2. A flat gap: no snore, no breath sound, typically 10 to 30 seconds. On a waveform it is a straight line.
  3. A loud snort or gasp as the airway opens, often with movement you can hear in the sheets.
  4. The snoring settles and the cycle restarts, usually within a minute.

One gap in a night means little. A gap-and-gasp cycle that repeats through the night, especially on your back or after alcohol, is what sleep clinicians listen for. A phone hears the gasp; it cannot hear a silent central apnea and cannot measure oxygen. For ordinary snoring with decibel numbers, see what snoring sounds like.

Snoring vs sleep apnea: 6 differences

Simple snoring Obstructive sleep apnea
Sound pattern Steady, rhythmic, breath after breath Snore, silence of 10+ seconds, gasp or snort, repeat
Breathing pauses None, or rare and brief Many per hour; 5 an hour is the threshold for mild OSA
Morning Dry mouth or sore throat at most Headache, dry mouth, unrefreshed after 8 hours
Daytime Normal energy Sleepy while driving or reading; dozing in meetings
Partner reports "You snore" "You stop breathing", "you choke in your sleep"
Health link Mostly a noise problem Linked to high blood pressure, heart disease and stroke (NHLBI)

Pauses, gasps and daytime sleepiness separate the two. Loudness alone does not: a 70 dB snorer with no pauses and full energy may be fine, and a quiet snorer who wakes with headaches and dozes at red lights may not be.

What type of snoring is dangerous?

The snoring to worry about is loud, nightly, interrupted by pauses or gasps, in someone who is tired during the day. Any one of those alone is weak evidence; together they match how sleep clinics screen for apnea.

Also watch for snoring that is just as loud on your side as on your back: positional snoring usually eases when you turn, and an apnea-prone airway may not. An app that tags sleep position shows this without anyone staying up to watch.

STOP-BANG: score yourself in one minute

STOP-BANG is the screening questionnaire most sleep clinics use (Chung 2016). Each yes is one point.

  • Snoring: loud, louder than talking or heard through a closed door?
  • Tired: often tired, fatigued or sleepy during the day?
  • Observed: has anyone seen you stop breathing or choke during sleep?
  • Pressure: do you have, or are you treated for, high blood pressure?
  • BMI over 35?
  • Age over 50?
  • Neck circumference over 40 cm (about 16 inches)?
  • Gender male?

Score 0 to 2: low risk. Score 3 to 4: intermediate. Score 5 to 8: high risk of moderate to severe OSA. Three or more is a reasonable point to ask about a sleep test, and a recording with pauses and gasps counts as a yes on "Observed" even if you sleep alone.

How much does a home sleep apnea test cost?

A home sleep apnea test typically costs about $150 to $400 without insurance in the US, and many insurers cover it with a referral. Treat those numbers as approximate; prices vary by state and provider. An in-lab polysomnography usually runs from about $1,000 to $3,000 cash.

The AASM guideline (Kapur 2017) supports a home test for adults with signs of moderate to severe OSA and no major heart or lung disease. The kit records airflow, breathing effort, oxygen and heart rate, exactly what a phone cannot.

What can a phone recording tell you?

Whether you snore, how loud, for how long, and whether the sound stops and restarts with gasps. It cannot tell you your oxygen level or whether a quiet gap was an apnea or simply quiet breathing. Apps cannot diagnose sleep apnea, and no app should say otherwise.

Snorly records only when it hears snoring, scores each night from 0 to 100, labels every clip Quiet, Light, Moderate or Severe by decibels, and flags breathing pauses and gasps as worth discussing with a professional. Audio never leaves the phone. The Premium PDF report puts the timeline and flagged clips on one page for a clinician. Not sure you snore at all? Start with the 3-night test.

What to do tonight
  1. Record one full night with a snore app or Voice Memos, phone on the nightstand, plugged in.
  2. In the morning, listen for the cycle: snore, gap of 10 seconds or more, gasp. Count how often it repeats.
  3. Score STOP-BANG above and write the number down.
  4. If the cycle repeats or your score is 3 or more, ask your doctor about a home sleep apnea test and bring the recording.
  5. Skip alcohol tonight, so the recording shows your baseline rather than your worst case.
Snorly app icon

Hear your own snoring tonightSnorly records only when it hears snoring and plays it back in the morning. Free to try, no account.

Download on the App Store

Related questions

Can I snore but not have sleep apnea?

Yes, and most snorers do not have it. If your snoring is steady, you feel rested, and nobody has heard you gasp or stop breathing, the odds favor simple snoring. Several nights of recordings with no pauses support that, though they cannot rule apnea out.

What is the 3% rule in sleep apnea?

It is the scoring rule for hypopneas, the partial pauses. Under AASM criteria a hypopnea counts when airflow drops for at least 10 seconds and blood oxygen falls by at least 3%, or the event ends in an arousal. Some insurers still require a 4% drop, which gives lower counts from the same night.

How do I tell if it is apnea or just snoring?

Listen for gaps of 10 seconds or more, gasps after the gaps, and the cycle repeating. Then check yourself for daytime sleepiness and morning headaches. Two of those signs plus a STOP-BANG of 3 or more is enough to ask for a home sleep test.

Sources

Snorly is a snore recorder and tracker, not a medical device. It does not diagnose sleep apnea or any other condition. If you notice pauses in breathing, gasping or daytime sleepiness, talk to a doctor.