Is it normal for cats to snore?

Soft snoring during deep sleep is common in many cats — especially if head is tilted or airway partially relaxed. Loud snoring, snoring that is new, or snoring with breathing effort while awake needs vet assessment.

Why does my cat snore loudly?

Obesity narrowing the airway, brachycephalic (flat-faced) breeds, nasal congestion from cat flu, polyps, or asthma can cause loud snoring. Overweight cats are a common UK cause.

When is cat snoring a problem?

See your vet if snoring is new, your cat gasps or breathes with an open mouth when awake, has blue/grey gums, reduced exercise tolerance, or nasal discharge with sneezing.

Can obesity cause snoring in cats?

Yes — excess fat around the upper airway contributes to snoring and increases risk of diabetes and joint disease. Weight loss often improves breathing noise.

Cat Health

Why Does My Cat Snore UK?

Quick answer

**Soft snoring during sleep is often normal** in UK cats — especially relaxed or slightly overweight pets. **New loud snoring, snoring while awake, open-mouth breathing, or effortful breaths** need vet checks for [obesity](/health/cat-obesity-uk), upper respiratory disease, or asthma. Never ignore sudden breathing change.

Key takeaways

Soft snoring during deep sleep is common in many cats — especially if head is tilted or airway partially relaxed. Loud snoring, snoring that is new, or snoring with breathing effort while awake needs vet assessment.
Obesity narrowing the airway, brachycephalic (flat-faced) breeds, nasal congestion from cat flu, polyps, or asthma can cause loud snoring. Overweight cats are a common UK cause.
See your vet if snoring is new, your cat gasps or breathes with an open mouth when awake, has blue/grey gums, reduced exercise tolerance, or nasal discharge with sneezing.

The full picture

Causes, home monitoring, treatment options and the exact signs that mean call your vet — in the complete guide.

Read the full guide Check symptoms

Frequently Asked Questions

Is it normal for cats to snore?: Soft snoring during deep sleep is common in many cats — especially if head is tilted or airway partially relaxed. Loud snoring, snoring that is new, or snoring with breathing effort while awake needs vet assessment.
Why does my cat snore loudly?: Obesity narrowing the airway, brachycephalic (flat-faced) breeds, nasal congestion from cat flu, polyps, or asthma can cause loud snoring. Overweight cats are a common UK cause.
When is cat snoring a problem?: See your vet if snoring is new, your cat gasps or breathes with an open mouth when awake, has blue/grey gums, reduced exercise tolerance, or nasal discharge with sneezing.
Can obesity cause snoring in cats?: Yes — excess fat around the upper airway contributes to snoring and increases risk of diabetes and joint disease. Weight loss often improves breathing noise.

Reviewed 2026-06-25 against UK veterinary guidance · Information only — not a substitute for seeing your vet.