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Why Does My Cough Get Worse at Night? Understanding the Causes and Treatments

Aug 14, 2025

Paediatric Care

Why Your Cough Gets Worse at NightWhy Your Cough Gets Worse at Night

If you’ve ever woken up in the middle of the night coughing uncontrollably, you’re not alone. Nighttime coughing is a common issue that many people experience, and it can interfere with your sleep, leaving you feeling fatigued and frustrated. So, why does a cough often get worse at night? In this blog, we’ll explore the common causes behind nighttime coughing and share 7 practical tips on how to manage and get rid of this discomfort, ensuring better rest and overall health.

What Triggers Nighttime Coughing?

Nighttime coughing can be triggered by a number of factors, many of which are related to your body’s position when lying down or the body’s natural rhythms at night. Here are the most common causes:

1. Postnasal Drip (Upper Airway Cough Syndrome)

One of the most common causes of nighttime coughing is postnasal drip. This occurs when mucus from the sinuses or nasal passages drips down the back of the throat while lying down, irritating the throat and triggering a cough. This is especially common during the cold season, allergies, or sinus infections. If you notice throat clearing or a runny nose alongside coughing, this could be the cause.

2. Asthma and Nocturnal Asthma

Asthma is another common culprit for nighttime coughing. Asthma causes inflammation in the airways, making them narrower and more sensitive. When you lie down, asthma symptoms can worsen, leading to coughing. Nocturnal asthma, which is a type of asthma that worsens at night, is also quite common. Factors like cooler air, allergens, or body position can trigger coughing, wheezing, and shortness of breath.

3. GERD (Gastroesophageal Reflux Disease)

Gastroesophageal reflux disease, or GERD, occurs when stomach acid rises up into the oesophagus, especially when lying down. This acid irritates the throat and triggers coughing. GERD can also cause a sore throat, difficulty swallowing, and a sour taste in the mouth. If you experience heartburn along with your nighttime cough, GERD may be to blame.

4. Chronic Bronchitis or COPD

Chronic bronchitis and Chronic Obstructive Pulmonary Disease (COPD) can cause persistent coughing, which may worsen at night. These conditions lead to inflammation and damage to the lungs and airways, making it tougher to breathe and causing a chronic cough. At night, the body’s position can make it easier for mucus to accumulate, intensifying the cough.

5. Allergies and Environmental Triggers

Allergens in the bedroom, such as dust mites, pet dander, or mould, can also trigger coughing, particularly at night when you’re lying still. These allergens irritate the respiratory system, leading to coughing, sneezing, or congestion. For those with sensitive airways, these triggers can worsen during the night.

Why Coughing is Worse at Night

Coughing at night tends to worsen due to several physiological factors:

1. Gravity and Posture

When you lie down, gravity allows mucus to accumulate in the back of the throat, which can trigger coughing. For individuals with postnasal drip or GERD, lying flat exacerbates these issues, making the cough worse.

2. Air Quality and Temperature

Cooler air at night can irritate the respiratory system, especially for people with asthma, bronchitis, or allergies. Dry indoor air from air conditioning or heating can also contribute to throat irritation and coughing.

3. Circadian Rhythms and Inflammation

Your body’s natural rhythms may make inflammation worse at night. At night, your body tends to produce less cortisol, which is an anti-inflammatory hormone, making the airways more sensitive to irritants. This increase in sensitivity can trigger coughing, especially if you have pre-existing respiratory conditions.

7 Ways to Manage Nighttime Coughing

Managing nighttime coughing involves several practical steps, including medical treatments, lifestyle adjustments, and environmental changes. Here are seven effective strategies to help alleviate and prevent coughing at night:

1. Adopt a Respiratory-Supportive Diet

Certain foods can help improve respiratory function and soothe throat irritation. Eat foods that support lung health, such as those rich in omega-3 fatty acids (like fish, flaxseeds, and walnuts), antioxidants (found in fruits and vegetables), and anti-inflammatory nutrients. Avoid processed foods, sugar, and caffeine, which can irritate the throat and exacerbate coughing.

2. Prioritise Sleep Hygiene

Improving your sleep hygiene can help reduce nighttime coughing. Try to:

  • Sleep with your head elevated to prevent postnasal drip and GERD symptoms.
  • Maintain a consistent sleep schedule.
  • Limit screen time before bed, allowing your body to relax and prepare for sleep.

If persistent sleep disturbances are present, consult a doctor to address underlying issues like sleep apnea.

3. Regular Physical Activity

Regular exercise improves lung function, reduces stress, and helps maintain a healthy weight, factors that contribute to less frequent nighttime coughing. Activities like walking, swimming, and yoga are particularly helpful for those with asthma or chronic respiratory issues.

4. Stress Management and Mindfulness Techniques

Managing stress via mindfulness and relaxation techniques can lower anxiety and help lower cortisol levels, which can, in turn, reduce coughing. Practice deep breathing, meditation, or progressive muscle relaxation to relieve stress before bed.

5. Seek Professional Support or Therapy

If your nighttime cough is severe or persistent, consider seeing a healthcare professional. A doctor can diagnose underlying conditions like asthma, GERD, or allergies and recommend appropriate treatments, including medications or therapies. In some cases, it might be necessary to consult a pulmonologist for further evaluation, especially if your cough persists over a prolonged period or is associated with breathing difficulties. For more information, check out our blog, When Should You Consult a Pulmonologist for Persistent Cough or Breathing Issues?.

6. Consider Medical or Natural Treatments

  • For asthma or allergies, use prescribed medications like inhalers or antihistamines to manage symptoms.
  • For GERD, take antacids or medications as prescribed by a healthcare provider.
  • Natural remedies: Use honey in warm tea, herbal remedies like ginger, or magnesium supplements to soothe the throat and reduce coughing.

7. Stay Mentally Active and Socially Connected

Engage in activities that keep your mind sharp and help maintain emotional well-being. This can reduce stress, which may exacerbate nighttime coughing.

When to Seek Medical Attention for Nighttime Coughing?

While occasional nighttime coughing is common, certain signs indicate the need to seek medical attention:

  • Persistent Coughing: If your cough lasts for more than three weeks, it could be a sign of a more serious underlying condition like asthma, GERD, or COPD.
  • Difficulty Breathing: If you’re experiencing wheezing, shortness of breath, or tightness in your chest along with coughing, consult a healthcare provider right away.
  • Chest Pain or Tightness: If coughing is accompanied by chest pain, this may signal a more serious problem, such as an infection or heart-related issue.
  • Coughing Up Blood: If you notice blood in your cough, it’s crucial to seek medical attention immediately.

In Conclusion

Nighttime coughing can significantly impact your sleep and overall health, but with the right strategies, it’s possible to manage and reduce its severity. By adopting lifestyle changes, improving your sleep hygiene, and seeking professional treatment when necessary, you can alleviate nighttime coughing and improve your quality of life. It’s essential to identify the underlying reasons and take proactive steps to address them.

Take Action Today! Expert Care for Your Nighttime Cough

If you’re struggling with a severe cough at night, don’t wait any longer. Book an appointment at Marwellus Clinic & Diagnostics to receive a comprehensive examination and personalised treatment plan that serves your needs. Our seasoned team is dedicated towards helping you find effective relief from your symptoms and ensuring better sleep and overall health.

FAQs

Why does my cough get worse at night?

Nighttime coughing is often caused by postnasal drip, acid reflux, asthma, or environmental allergens, all of which are aggravated when lying down.

What can I do to stop coughing at night?

Try sleeping with your head elevated, using a humidifier, managing allergies, and avoiding heavy meals before bedtime.

Why is my cough worse when I lie down?

Lying down allows mucus to accumulate in the throat, triggering coughing. Conditions like GERD or postnasal drip also worsen when you are flat on your back.

How can I treat nighttime coughing naturally?

Natural remedies such as drinking warm tea with honey, using a humidifier, and keeping the bedroom allergen-free can help alleviate symptoms.

Should I see a doctor if I have a chronic nighttime cough?

Yes, if your cough persists for more than a few weeks or worsens, it’s best to consult with an expert for a proper diagnosis.
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