I've chalked this up to the fact that I am about 50 lbs. overweight, and large breasted. (G cup ) When I lay on my back, I have no occurences. I've had to adapt to sleeping on my back due to sciatica and lower back pain, but sometimes during the nite in a deep sleep I'll turn over, and within minutes that I'm not on my back, I am flying out of bed gasping for breath because of acid reflux.
Am I right to assume that its due to my size ?
Being overweight does contribute to reflux as it puts more pressure on the stomach but also lying on your stomach can cause increased pressure that makes it worse. Interestingly research has found that for many sleeping on the right side makes it worse but on the left makes it better. It has something to do with the way the pressure changes right where the esophagus meets the stomach. All that said, my first baby slept best on her left but my third slept best on his right and I sleep best on my stomach (we all have reflux).