Are Earplugs Safe to Sleep In? Risks, Research and How to Use Them

Are earplugs safe to sleep in? For most people, yes, and a 2026 lab study found they protected deep sleep from traffic-style noise remarkably well. There are a few real downsides to know about, though: earwax build-up, irritated ear canals, and the obvious one, not hearing things you need to hear. This guide covers what the research says, the risks and how to avoid them, how to choose and use earplugs safely, and how to still wake up on time.

The short answer: sleeping in earplugs is generally safe for healthy adults and can protect your sleep from noise. A 2026 trial found earplugs recovered most of the deep sleep lost to night-time noise, with no change in hearing afterwards. The main risks are earwax being pushed in or building up, ear canal irritation or infection from dirty or worn plugs, and allergic reactions to some materials. Keep them clean, replace them often, insert them gently, and make sure you'd still notice a smoke alarm and your morning alarm.

What the research says

The best recent evidence comes from a 2026 study in the journal Sleep. Researchers had 25 healthy adults sleep in a lab over several nights while playing recorded environmental noise, and tested earplugs and pink noise (source).

• Noise cut deep sleep by about 23 minutes a night.
• Earplugs won back about 17 of those minutes, roughly 72% of the loss, and sleep structure on earplug nights looked much like quiet nights.
• They started to fail at the loudest level of noise tested (65 dBA).
• Most people found them comfortable. About 62% rated them very or somewhat comfortable, and fewer than 1 in 10 found them uncomfortable.
• No hearing changes were found after earplug use.

That's a short lab study, not years of nightly use, but it's a strong sign that earplugs do what they claim.

The real risks, and how to avoid them

Risk	What happens	How to reduce it
Earwax build-up	Plugs can limit the ear's natural self-cleaning and push wax deeper	Don't push plugs in too far; give your ears nights off; never use cotton buds to clean
Irritation or infection	Dirty or worn plugs can irritate the ear canal	Wash reusable plugs, replace foam plugs often, don't share them
Allergic reaction	Some materials can trigger a skin reaction in the ear	Try a different material if your ears itch or flake
Missing important sounds	You may not hear a baby, a smoke alarm or your alarm clock	Plan around it (see below)
Discomfort	Pressure or soreness, especially for side sleepers	Try a smaller size or a softer type

On earwax, healthdirect says foreign objects in the ear, including earplugs, hearing aids and cotton tips, can limit the ear's self-cleaning process. Signs of a wax problem include a full feeling in the ear, earache, ringing (tinnitus), muffled hearing and dizziness (source).

On allergies, a 2025 Korean case-control study of 75 people found that patch-test reactions to earphone and earplug materials were far more common in people with outer ear inflammation (otitis externa) than in people without it (source). It was a small study and can't prove cause, but it's a reason to switch materials if your ears get itchy or sore.

How to choose earplugs for sleep

• Foam. Soft, widely available and good at blocking noise. Most are meant to be replaced regularly rather than kept for months.
• Silicone or wax. Mouldable plugs that sit over the ear canal opening rather than deep inside, which many side sleepers find comfortable.
• Reusable flanged plugs. Washable and longer lasting, but some people find them firm against the pillow.
• Custom-moulded plugs. Made from an impression of your ears by a hearing professional. More comfortable for some people who wear plugs every night.

How to use them safely

1. Wash your hands before handling plugs.
2. Follow the packet instructions. For foam plugs, that usually means rolling them thin, inserting gently and holding them while they expand. They should sit snugly, not jammed in.
3. Remove them slowly and gently.
4. Clean reusable plugs with mild soap and water and let them dry fully.
5. Replace foam plugs once they stop springing back or look grubby.
6. Give your ears a break now and then if you can.

Will you hear your alarm, and the smoke alarm?

This is the part most people forget. If earplugs block traffic, they can also muffle your alarm clock, a crying baby or a smoke alarm. Before you rely on them, test that you'd still notice your smoke alarm with them in. If you can't, talk to your local fire service about alarm options, especially if you also have hearing loss.

For waking up on time, you have a few options: a louder alarm (which may wake others), your phone under the pillow, or something you feel rather than hear. We cover them all in how to wake up with earplugs in. If noise is why you need earplugs in the first place, see noisy neighbours sleep tips, how to sleep next to a snorer and brown noise for sleep.

When to see your GP

See your GP if you have ear pain, discharge, itching that won't settle, a blocked feeling that lasts, ringing in your ears or any change in your hearing. Healthdirect advises seeing a doctor for symptoms lasting more than five days, a possible ear infection, hearing loss, or if you've had ear surgery or an eardrum injury. Don't try to dig out wax or a stuck plug yourself. This guide is general information, not medical advice.

Where the Sovune Nudge fits

We make the Sovune Nudge, a vibrating alarm wristband, so we're not neutral. Earplugs and a sound alarm work against each other. A wrist alarm doesn't rely on your ears at all.

• Wakes you with vibration on your wrist, so it works with earplugs in.
• Starts as a gentle tap and builds through three intensity levels, over a full minute, and you can switch it off sooner.
• Silent, with no speaker, so it won't wake a partner who isn't wearing earplugs.
• Set on the band itself, with no app, phone or Bluetooth pairing.

A vibrating alarm clock is not a safety device, and the Nudge is not a smoke alarm. It comes with a 30-day money-back guarantee.

Quick answers

Is it bad to sleep with earplugs every night? Not for most healthy adults. Keep them clean, replace them often and watch for wax build-up or irritation.

Can earplugs damage your hearing? The 2026 lab study found no hearing changes after earplug use. Pushing plugs in too deep or using dirty ones can cause wax or ear canal problems, though.

Can earplugs cause ear infections? Dirty or worn plugs can irritate the ear canal, and some people react to certain materials. Clean or replace them regularly, and see your GP if you get pain or discharge.

Which earplugs are best for side sleepers? Many side sleepers prefer soft foam or mouldable silicone or wax plugs that sit flush with the ear. Try a few types.

For every type of silent alarm compared, see our complete guide to vibrating alarms in Australia.

See the Sovune Nudge →