Snoring with allergies: why a stuffy nose makes you snore

What’s going on

Snoring happens when soft tissue at the back of your throat vibrates as you breathe in. A blocked nose makes that more likely.

The AAO-HNS explains why. A stuffy nose takes extra effort to pull air through, which creates a stronger vacuum in your throat. That suction draws the floppy tissues together, so they vibrate.

The American Academy of Sleep Medicine (AASM) says congestion from a cold or allergies can cause snoring. Some people notice their snoring comes and goes with allergy season or a cold.

Clues your nose is involved

• Your snoring comes and goes with the seasons, a cold or time around pets or dust.
• You wake with a dry mouth because you’ve been breathing through it.
• Your nose feels stuffy at bedtime, or worse when you lie down.
• You snore less on nights your nose is clear.

If your nose is blocked most of the time, all year, something other than allergies may be going on. A deviated septum, nasal polyps or swollen tissue inside the nose can do it. That’s worth a visit to your doctor.

What helps

1. Rinse with saline

A saltwater rinse, from a squeeze bottle or neti pot, is cheap and drug-free. The FDA says nasal rinses can wash out pollen and dust, loosen thick mucus and relieve nasal symptoms of allergies and colds.

Use the right water. The FDA says to use only distilled, sterile or previously boiled water, never straight from the tap. Wash and dry the device between uses.

No study we found tested saline rinses for snoring. The aim is a clearer nose at bedtime.

2. Treat the allergy itself

The AAO-HNS says a nasal steroid spray or other allergy treatment may help some people who snore.

Ask a pharmacist or doctor which option suits you, especially if you take other medicines or have other health conditions. Some allergy pills cause drowsiness, and sedating medicines can make snoring worse.

Cutting down what you’re allergic to helps too. If you know your trigger, keeping it out of the bedroom is a good start.

3. Nasal strips and dilators

Nasal strips and dilators Weak hold the front of your nose open. A 2016 review found they improved nasal breathing but didn’t change sleep apnea measures. Good evidence on snoring itself is limited.

They’re worth trying when your snoring seems to start in your nose. Breathe Right strips are sold at most drugstores. Band-and-tab dilators like Intake, in the pick box, reuse the band. Our nasal strips vs nasal dilators guide compares them.

A strip can’t open a nose blocked by swelling deep inside. Treat the allergy as well.

4. A humidifier, for comfort

A humidifier Weak may make a dry nose and throat feel better if you breathe through your mouth at night. No study we found shows it quiets snoring. Clean it as the maker directs.

5. Sleep on your side, and skip the nightcap

Congestion adds to other causes. Sleeping on your side Some often helps if your snoring is worse on your back. Less alcohol Some near bedtime helps too, since alcohol relaxes your throat.

A bedtime routine for allergy season

1. Rinse your nose with saline an hour or so before bed.
2. Use any allergy treatment your pharmacist or doctor suggested, as directed.
3. Put on a nasal strip or dilator if you use one.
4. Settle on your side, not your back.
5. Keep pets and anything else you react to out of the bedroom.

What not to do

Don’t tape your mouth when your nose is blocked

Mouth tape Weak + warning is risky if you can’t breathe freely through your nose. A 2025 review found only 10 small studies, and just 2 showed any benefit. The authors warned of possible serious harm, including suffocation risk with a blocked nose.

If your nose is stuffy, taping your mouth shut can leave you short of air. Never tape your mouth if you might have sleep apnea either. More in is mouth taping safe?

Don’t overdo it on sleepy allergy pills

Drowsy-making medicines relax the throat, the AAO-HNS notes. If an allergy pill makes you sleepy, ask your pharmacist about a non-drowsy option.

What a dentist or doctor can do

If your nose stays blocked despite rinses and allergy treatment, see your doctor. An ear, nose and throat doctor can look inside your nose for a deviated septum, polyps or swollen tissue, sometimes with a thin camera.

An allergist can test what you’re allergic to and suggest longer-term treatment.

If your nose is clear and you still snore, the cause is likely further back in your throat. See how to stop snoring for the next steps. Loud snoring with pauses or gasping, or feeling tired after a full night, needs a physician. Start with the 2-minute “Should I get tested?” checklist.