Yes. Same issue. GERD with main symptom being coughing. A lot. Even with Omeprazole. It is also intertwined with significant allergies so I never know what the cause of the cough is, but I’m leaning toward food as the main culprit. Finding out which foods send you on a coughing jag could help, if you’re willing to give them up. As everyone else has said, use a wedge (plus pillows), you can even try sleeping in a sitting position with pillows stuffed behind you, it’s the lying flat that causes the reflux that causes wheezing and/or coughing, and don’t eat for 2-4 hrs before bedtime. A tiny snack won’t hurt.