Paan,
I taped my gastrio feeding tube in a U shape on my stomach when not in use. I have an electric bed on an incline, so that help with fluids not going moving up to cause choking. There is a specific body pillow that is on the market where onle lays on their side with it. I always lay on my side, left, which is supposed to be the best position for various organs. Tru not to lay down an hour after eating.
I hope this helps, and may have mentioned ideas stated.