Cough Upon Falling Asleep That Stops Once Asleep

Understanding the Timing Pattern

The specific pattern of coughing only when falling asleep but stopping once asleep is highly characteristic of GERD-related cough, as the lower esophageal sphincter closes during established sleep, according to the American Thoracic Society 1
A cough that abates overnight is specifically associated with reflux due to closure of the lower esophageal sphincter during established sleep, as noted by the American Gastroenterological Association 1
Sleep suppresses the cough reflex, particularly during deep sleep stages, which explains why the cough stops once the patient is fully asleep, as reported by the European Respiratory Society 1
The transition period when falling asleep represents a vulnerable window when reflux can occur before protective sleep mechanisms fully engage, as described by the American Academy of Sleep Medicine 1
Ambulatory recordings have demonstrated a marked reduction in cough overnight in patients with various causes of chronic cough, according to the National Sleep Foundation 1

The American College of Gastroenterology recommends initiating comprehensive GERD therapy immediately, as this is the most likely diagnosis based on the timing pattern, with a proton pump inhibitor (PPI) at standard dose once daily for 4-8 weeks 2
The American Heart Association suggests implementing antireflux lifestyle modifications, such as avoiding eating within 2-3 hours of bedtime, elevating the head of the bed, avoiding trigger foods, pursuing weight management if overweight, and smoking cessation if applicable 2
If inadequate response after 4-8 weeks, the European Society of Gastrointestinal Endoscopy recommends increasing to twice-daily PPI dosing 2
The American College of Chest Physicians suggests considering adding a prokinetic agent, such as metoclopramide, if there is little or no response to PPI alone 2

Up to 75% of patients with GERD-related cough lack typical gastrointestinal symptoms (silent GERD), so absence of heartburn does not rule out this diagnosis, as noted by the American Gastroenterological Association 3
Response to GERD therapy may take several months in some patients, so adequate treatment duration is essential, according to the American College of Gastroenterology 2
Women, particularly middle-aged women, have higher prevalence of chronic cough and more sensitive cough reflex, as reported by the European Respiratory Society 1
ACE inhibitors can cause chronic cough and should be discontinued if the patient is taking one, as recommended by the European Society of Cardiology 4