A blocked nose can turn a good sleeper into a snuffly, frustrated one, because young babies feed and settle best when they can breathe through their nose. The most useful steps are simple: clear the nose with saline and gentle suction just before feeds and sleep, offer smaller and more frequent feeds, and keep every sleep flat and on the back. Propping up the cot, sleeping upright in a car seat and strong rubs or oils are the shortcuts to skip.
This guide is about getting through the nights. For the cold itself, how long it lasts and how to tell it from bronchiolitis, see colds and congestion.
Why does a blocked nose make it so hard for babies to sleep?
The AAP's colds advice puts it plainly: babies can't breastfeed or drink from a bottle unless their nose is open. The AAP's guide to sleeping with a stuffy nose adds that congestion from colds, flu, RSV or COVID can make it harder for babies to breathe, and can make them feed more slowly or not feel like eating.
So a congested baby often wakes more, takes short, fussy feeds, and wakes again hungry. That pattern usually settles as the cold clears. The AAP's colds advice lists a blocked nose that keeps waking your baby as something to raise with your doctor during office hours, if clearing the nose isn't enough.
How do I clear my baby's nose before sleep?
- Use saline drops or spray. The NHS says saline nose drops can help loosen dried snot, and suggests asking a pharmacist or GP about them. Use plain saline with no added medicine.
- Time it before feeds and sleep. The AAP suggests saline and suction about 15 minutes before a feed or nap so your baby can eat and rest better. For babies under 1, its colds advice says to use saline "no more than 4 times per day or before every feeding".
- Suction gently. The AAP suggests a bulb syringe: squeeze the bulb before placing it at the nostril, then release to draw out the saline and mucus. The FDA says a bulb syringe works well for babies under one year. For sticky mucus at the edge of the nose, the AAP suggests a wet cotton bud gently wiped around the outside.
- Protect the skin. The AAP's colds advice suggests a little petroleum jelly under the nose if the skin gets red from wiping.
- Add moisture if the air is dry. The AAP suggests a cool-mist humidifier close enough for the mist to reach your baby but out of reach, with the water changed every day. The FDA also says to use cool mist rather than a warm-mist humidifier.
- Be careful with steam. The AAP suggests sitting with your baby in a steamy bathroom before bed. The NHS common cold page warns not to let children breathe steam from a bowl of hot water because of the risk of scalding.
Many parents find a quick nose-clear becomes part of the bedtime routine during a cold, just before the last feed.
How do I feed a baby with a blocked nose?
Feeding is harder work with a blocked nose, so make it easier rather than longer:
- Offer smaller feeds more often. The Royal Children's Hospital Melbourne (RCH) suggests feeding small amounts more often, for breastfed and formula-fed babies, and using saline before feeds so feeding is more comfortable.
- Keep breastfeeding. The AAP's cold remedies guide says breastfeeding is still recommended for babies with colds, and that expressing milk into a cup or bottle may help if feeding at the breast is too hard for a while.
- Pause and let them breathe. A congested baby may come off the breast or bottle often. Let them, then offer again.
- Count wet nappies. Fewer than usual is an early sign your baby isn't getting enough. See dehydration signs and when your baby feeds less than usual.
If your baby is older than 6 months, the AAP says you can offer a little water in a cup as well as their usual milk. See water for babies.
Why can't I raise the cot or let my baby sleep upright?
It feels logical that a congested baby would breathe better propped up. Safe-sleep bodies in all three countries say it doesn't help and isn't safe.
| Tempting fix | What the sources say | Do this instead |
|---|---|---|
| Raising the head of the cot or mattress | The AAP says inclining the mattress is not safe; the Lullaby Trust says it's unlikely to improve cold symptoms | Flat, firm mattress |
| Pillows, rolled towels, wedges, positioners | The AAP says propping on towels or pillows is not safe; the NHS says nothing to keep your baby in place | Clear cot, baby on their back |
| Car seat, swing, bouncer or rocker | The AAP says babies can't keep their airway straight and car seats don't support safe sleep | Move to the cot as soon as you can |
| Dozing together on a sofa or armchair | Red Nose says never, no matter how tired you are | Put your baby in their cot before you get drowsy |
The Lullaby Trust says not to incline, tilt or prop the mattress, cot or baby, and that there's no need for any equipment or rolled-up blankets to keep a baby in one position. Red Nose in Australia says an inclined surface encourages a baby's head to fall forward, which can block their airway.
Sofas are especially risky on sick nights, when you're exhausted and holding an unsettled baby. Red Nose's sofa advice in Australia says to never sleep with your baby on a sofa, armchair or recliner, because soft cushions, gaps and sloped edges can trap a baby's face or body. If you feel drowsy, put your baby in their own safe sleep space before you fall asleep.
The rest of the safe-sleep basics still apply: on the back for every sleep, nothing soft in the cot, and, as the NHS SIDS guidance says, in a cot or Moses basket in the same room as you for at least the first 6 months. See safe sleep and sleep products to avoid.
Are vapour rubs, essential oils or decongestants safe for babies?
Mostly not, and age limits differ by product and source:
- Mentholated or vapour rubs. The AAP says to use a mentholated rub only for children 2 years and older, and to store it out of reach. The NHS common cold page says a pharmacist can suggest vapour rubs for chesty coughs in babies and small children. If you're considering one, ask a pharmacist and follow the age on the label.
- Essential oils and vaporiser liquids. The Western Australian Government's Healthy WA says as little as 2 mL (less than half a teaspoon) of eucalyptus oil can cause significant poisoning in an infant. It says vaporiser solutions often contain essential oils, and that undiluted oils on the skin or in the nostrils can irritate or burn. It gives no safe age, so keep these away from babies and stored in child-resistant containers.
- Decongestant drops, sprays and medicines. The NHS says decongestants should not be used by children under 6. See baby coughing at night for what each country's regulator says about cough and cold medicines.
If your baby swallows an essential oil or vaporiser liquid, get advice straight away from a poisons information line (in Australia, the Poisons Information Centre) or a health advice line (Pregnancy, Birth and Baby on 1800 882 436 in Australia, NHS 111 in the UK, your pediatrician's after-hours line in the US). Call your local emergency number (000 in Australia, 999 in the UK, 911 in the US) if they are drowsy, having trouble breathing or having a seizure.
What might a congested night look like?
Example night with a congested 4-month-old (fictional; adjust to your baby):
| Time | What happens |
|---|---|
| 6:45 pm | Saline and gentle suction, then a short wind-down |
| 7:00 pm | Smaller feed, with breaks to breathe |
| 7:30 pm | On their back in the cot; cool-mist humidifier out of reach |
| 10:30 pm | Wakes snuffly; clear nose, short feed, back in the cot flat |
| 1:30 am | Wakes again; feed, check breathing and nappy |
| 5:00 am | Another short feed; note wet nappies so far |
Expect more wake-ups than usual for a few nights. Shorter, more frequent feeds overnight are normal while your baby is unwell, and the pattern usually goes back once the cold clears.
When is a blocked nose affecting feeding or breathing enough to get help?
Call your local emergency number (000 in Australia, 999 in the UK, 911 in the US) now if your baby:
- is struggling to breathe, breathing very fast, grunting, or sucking in under the ribs or at the tummy
- pauses in their breathing, or their breathing isn't regular
- has blue, grey, very pale or blotchy skin, lips or tongue
- is floppy, much sleepier than usual and not feeding, hard to wake or can't be woken
- is under 3 months and has a temperature of 38°C (100.4°F) or higher, or is 3 to 6 months old and has a temperature of 39°C (102.2°F) or higher
- has had no wet nappy or wee for 12 hours
These come from the NHS urgent-help guide and the RCH bronchiolitis fact sheet, which says to call an ambulance if a baby's breathing isn't regular or they pause while breathing.
Get medical help today (same-day GP, after-hours doctor or a health advice line (Pregnancy, Birth and Baby on 1800 882 436 in Australia, NHS 111 in the UK, your pediatrician's after-hours line in the US)) if your baby:
- is refusing feeds or feeding much less than usual (the RCH says less than half their normal amount needs a doctor)
- has fewer wet nappies than usual
- is under 6 months old and has a cold; the AAP's colds advice suggests contacting a doctor within 24 hours at this age
Talk to your GP or child-health nurse if a blocked nose keeps waking your baby even after saline and suction, or if congestion lasts beyond the cold. Book a visit soon, rather than waiting for a routine check, if your baby snores or snorts most nights when they're well.
What's worth noting during a congested spell?
Jot down feeds (roughly how long or how much), wet nappies, temperatures and any night wakings for breathing trouble. If you're worried about breathing, a short video of your baby breathing while undressed to the waist shows a doctor what you're seeing. Never delay getting help to make notes.
