Why Does Cough Get Worse at Night? Causes and What Actually Helps You Sleep

You’re tired, you’ve finally climbed into bed, and just as you’re about to fall asleep, the coughing starts. You sip some water, settle back down, and then it happens again. A cough that barely bothered you during the day can feel relentless at night, and it’s hard to get proper rest when every coughing spell wakes you up.

So, why does a cough get worse at night? Often, it comes down to what changes when you lie down, although the cause can vary from person to person. Here’s what may be behind it, what you can try tonight, and when it’s worth getting checked.

Why Does Coughing Get Worse When You Lie Down?

For the most part, you are on your feet and upright throughout the day. But come nightfall, the position of lying flat can have its consequences; mucus from a congested nose is free to make its way down the back of the throat and produce that well-known tickle. Reclining may also put some strain on the throat in the form of acid reflux, particularly if one has eaten late.

Then there is the matter of the bedroom environment. An airway that is already at the mercy of irritation can be further aggravated by dryness, dust, pet dander or any number of strong scents and smoke. 

The CDC’s common cold guidance covers simple ways to manage cold symptoms at home, including fluids, saline nasal spray, and a clean humidifier.

Common Causes of a Nighttime Cough

Postnasal drip and allergies

A stuffy or runny nose can cause mucus to pool at the back of the throat when lying down. This condition is often associated with throat clearing, a tickling sensation in the throat, sneezing, and congestion. Both the common cold and allergies can cause these symptoms.

A cough that lingers after a cold

Sometimes the congestion and aches have gone, but the cough hangs on. That’s because your airways can remain irritated after a respiratory infection. Talking, cool air, or lying down may trigger another bout. It should gradually improve; if it gets worse or keeps returning, check in with a healthcare professional.

Asthma or sensitive airways

Nighttime coughing can also be linked to asthma. You might notice wheezing, chest tightness, or shortness of breath, although coughing may be the main symptom. If you regularly wake up coughing, don’t rely on cough syrup alone, ask a healthcare professional whether asthma or another condition could be involved.

Acid reflux

A late dinner followed by lying down can make reflux more noticeable. You might have heartburn or a sour taste, but some people mainly notice a dry cough or a hoarse throat. Try leaving a couple of hours between eating and going to bed to see whether that helps.

Dry air and bedroom irritants

Dust, pet dander, smoke, and very dry air can make an irritated throat feel worse. Wash bedding regularly, keep smoke out of the bedroom, and clean any humidifier you use. A room that’s too damp can encourage mold, so more humidity isn’t always better.

What Can Actually Help You Sleep?

You don’t need to try every remedy at once. Start with the changes that make sense for your symptoms:

• Raise your upper body. A wedge pillow or a slightly elevated head of the bed may help if mucus drainage or reflux is triggering the cough.

• Keep fluids nearby. Water or a warm drink can soothe a scratchy throat and help you stay hydrated.

• Try honey. A small amount may ease coughing for adults and children over 1 year old. Never give honey to a baby under 12 months.

• Ease a blocked nose. Saline nasal spray may help with congestion. If you use a nasal rinse, use distilled, sterile, or previously boiled and cooled water.

• Give late meals a miss. If reflux seems to be the culprit, finish eating a few hours before lying down.

• Check your bedroom. Reduce dust and strong fragrances, avoid smoke, and keep the air comfortable rather than excessively dry.

For more practical advice, see the CDC’s tips for treating a common cold. These measures may ease symptoms, but persistent or severe coughing needs more than home care.

Choosing the Right Relief for Your Cough

Not every cough feels the same. A dry cough is more of a tickle and brings up little or no mucus. A chesty cough brings up phlegm. That difference matters when choosing an over-the-counter medicine.

Dextromethorphan is a cough suppressant that temporarily reduces the urge to cough. Guaifenesin is an expectorant that helps loosen mucus so it’s easier to clear. Neither ingredient treats every cause of coughing, including asthma or acid reflux.

If you’re dealing with a cold-related cough and mucus, AXIV DM Max Liquid 6 fl oz combines dextromethorphan HBr and guaifenesin for temporary symptom relief. Read the Drug Facts label carefully and use the product only as directed.

Check with a pharmacist or healthcare professional before using a cough medicine if you take other medications, have a long-term lung condition, are pregnant or breastfeeding, or aren’t sure which product is suitable. Do not combine cold medicines without checking their active ingredients, since products can contain the same drug.

Before taking an over-the-counter cough medicine, check:

☐  Read the Drug Facts label and follow the stated dose.

☐  Check other medicines for overlapping active ingredients.

☐  Ask a pharmacist or healthcare professional if you take prescription medicines or have a long-term condition.

When Should You Get a Cough Checked?

A cough with trouble breathing, chest pain, blue or gray lips, confusion, or significant blood needs urgent medical attention. Get medical advice if symptoms are getting worse, you have a persistent fever, or the cough keeps coming back.

Read more from AXIV: Cough Symptoms, Types, Treatment, and Prevention

Frequently Asked Questions

Why does my cough get worse at night but ease during the day?

Lying down will aggravate postnasal drip and acid reflux symptoms. Bedroom allergens and dry air might provoke a cough as well. Just the timing doesn’t point to the exact reason.

What is the proper sleeping position in the case of a night-time cough?

You should try raising your upper part of the body, especially when there’s suspicion about reflux and mucus drainage. Select a comfortable position without problems with breathing.

Can I use cough remedies at night?

It’s possible to use some medications to relieve your cough symptoms; however, those won’t be sleeping pills. Be careful about drug-drug interaction and duplicity of active substances.

Does a nighttime cough mean that I have a cold?

Absolutely not. Allergies, asthma, acid reflux, and irritants may also cause a nighttime cough. If it persists or goes together with wheezing and breathlessness, visit your doctor.

The Bottom Line

A nighttime cough can make a good night’s sleep feel impossible, but the best approach is to work out what’s triggering it. Try elevating your upper body, soothing your throat, easing nasal congestion, and avoiding late meals if reflux may be involved. If your symptoms fit a cold-related cough, an appropriate over-the-counter medicine may offer temporary relief. If the cough persists, worsens, or keeps returning, get the cause checked.