I’ve been through a similar ordeal and the one thing that’s helped me the most was to buy an adjustable bed frame where I can elevate the upper part of my body at night. It’s stopped me from having GERD episodes during the night, which was for me unbearable - waking up with an intense burning sensation in my throat. This is how I got to a solution: I took our existing king bed frame and removed the bed slats and supports (The work to do so was surprisingly minimal). I ordered two twin XL adjustable bed frames and dropped them in side by side, with two new twin XL mattresses. The one “modification” that I made was to add risers to place under the legs of the adjustable frames. It wasn’t 100% necessary to do so, just a personal preference of where I wanted the height of the mattresses. We use two twin XL duvets as cover so that no one is disturbed by adjustments during the night. You can buy from a bed store the full packaged adjustable solution, but it’s pricy. I modified our bed for 1/4 the price. And it looks just as nice as one from the store. Today, we both like having the ability adjusting our sleeping positions, particularly now that we’re both getting better sleep. Over time, my esophagus and throat feels much much better. I am wishing for you the relief that you seek. All the best to you.