A stuffy nose at night during pregnancy: comfort and care questions

Nighttime nasal congestion during pregnancy is disruptive, but it isn't always caused by pregnancy and rarely has one straightforward fix. Noting when it started, what other symptoms come with it, and what your sleep environment looks like gives you useful information to bring to your doctor or midwife, rather than trying to manage it alone.

When congestion appears and what accompanies it

The timing of your symptoms carries real information. Congestion that appeared gradually alongside other pregnancy symptoms has a different profile from a sudden blocked nose that arrived with a sore throat and fever. A blocked nose that follows a predictable seasonal pattern, or one you had before becoming pregnant, may point toward allergies rather than a pregnancy-specific cause.

Note whether you have any of the following alongside the congestion:

• [ ] Sore throat or fever
• [ ] Sneezing or itchy, watery eyes
• [ ] A cough that does not improve
• [ ] Difficulty swallowing or a hoarse voice
• [ ] Heartburn or a burning sensation in your chest
• [ ] Loud snoring or waking up gasping
• [ ] Daytime sleepiness that feels out of proportion to how much time you spent in bed

Fever or a cough that does not settle may indicate an infection that needs assessment. Heartburn and congestion sometimes occur together at night because acid reflux can irritate the upper airway. The NHS notes that propping your head and shoulders up when you go to bed can stop stomach acid coming up while you sleep, and that sleeping on your left side can also help.² If you notice loud snoring together with daytime sleepiness, or breathing that stops during sleep, that pattern warrants a prompt conversation with your care team.³

A pregnancy sleep diary to take to your next appointment can help you record these details consistently so nothing gets lost between now and when you speak to your doctor or midwife.

Reviewing the bedroom environment

Before assuming a medical cause, it is worth checking straightforward environmental factors. Dry air at night can irritate the nasal passages regardless of pregnancy. A room that is too hot disrupts sleep and can make congestion feel worse. The NHS suggests keeping your room cool and using an electric fan as ways to manage feeling hot during pregnancy.¹

The table below outlines common environmental factors and practical adjustments to consider:

Elevating your head slightly and staying on your side throughout the night tends to keep the airway more open and can limit the sensation of fullness in the nasal passages. Side sleeping is already the recommended position from 28 weeks onward. Research suggests that falling asleep on your back after 28 weeks can double the risk of stillbirth, which may relate to blood and oxygen flow to the baby.⁴

A full-length crescent pillow like The Cove Pregnancy Pillow supports your bump, back, and knees at the same time, which can reduce how often you shift position during the night. Its shredded gel memory foam fill is adjustable through an inner zip, so you can make it firmer or softer depending on how much support feels right. The removable cover zips off for machine washing, which is useful if allergen control is part of your approach. For travel, the couch, or situations where a full-length option is not practical, The Cove Pregnancy Pillow Mini packs into a suitcase and works as a knee or back pillow on its own.

For broader guidance on getting comfortable on your side through pregnancy, the complete guide to sleeping on your side covers positioning in more detail.

Asking about appropriate symptom options in pregnancy

If environmental adjustments do not provide enough relief, the next step is speaking with your doctor or midwife about options that are appropriate for your specific situation and stage of pregnancy. Saline nasal rinses are often discussed as a lower-risk starting point, but it is still worth confirming with your care team before using any nasal product.

Do not assume that nasal sprays or antihistamines sold without a prescription are safe during pregnancy. The NHS is explicit: do not take any medicines without asking your midwife, doctor, or pharmacist whether they are safe in pregnancy.¹ The same caution applies to supplements and herbal preparations. Safety can vary by trimester, by the specific active ingredient, and by what else you may already be taking.

When you speak to your care team, it helps to bring a clear account of your symptoms. Think through the following before your appointment:

1. Note when the congestion started and how it changes through the night or across the week 2. List any products you have already used or are considering, with their active ingredients 3. Describe any accompanying symptoms from the checklist above 4. Record your sleep environment, including room temperature, bedding type, and any known or suspected allergens 5. Mention any prescribed medicines you take for other conditions, in case they are contributing

Your doctor or midwife can then advise on whether an over-the-counter option is appropriate for your circumstances, whether allergy assessment is worth pursuing, or whether the congestion is likely to resolve without intervention.

Checking before using medicines or supplements

It is worth stating this separately because the instinct to reach for a familiar remedy is understandable when you have barely slept. Many decongestants that are routinely used outside pregnancy are not recommended during it. Some antihistamines are also unsuitable at certain stages. The same caution applies to herbal supplements, which are not assessed for pregnancy safety in the same way that regulated medicines are.

If you are already taking prescribed medicines for another condition and think they may be contributing to your congestion, speak to your doctor before stopping or adjusting them. The NHS advises never stopping a prescribed medicine unless told to do so by a doctor or another qualified healthcare professional responsible for your care.²

It is also worth noting that some medicines affect the absorption of supplements you may already be taking. For example, antacids — which are sometimes used for the heartburn that can accompany nighttime congestion — can stop folic acid and iron supplements from being absorbed if taken too close together.² Your pharmacist can advise on timing if this applies to you.

Breathing symptoms that need prompt help

Most nighttime congestion during pregnancy is uncomfortable rather than dangerous, but some breathing symptoms warrant prompt attention rather than a wait-and-see approach.

Contact your doctor or midwife without delay if you notice:

• Snoring that is new or significantly louder than before pregnancy, especially if someone else has noticed you stop breathing during sleep³
• Waking up gasping or choking during the night
• Persistent daytime sleepiness that is not explained by nighttime waking³
• Chest pain or difficulty catching your breath
• Fever combined with difficulty breathing

The NHS advises seeing a doctor if your snoring is having a significant impact on your life, if you feel sleepy during the day, or if your breathing stops and starts while you sleep — as this may indicate sleep apnea, which can be serious if not treated.³ During pregnancy, unmanaged sleep apnea carries additional considerations for both parent and baby, so it is not something to monitor indefinitely without assessment.

If you want to understand this symptom pattern in more depth, the guide on new or louder snoring during pregnancy covers when and how to raise it with your care team.

More in this series: start with Sleeping during pregnancy, vivid dreams during pregnancy: making sense of a disrupted night and numb or tingling hands at night during pregnancy: questions to ask.