GERD prevention while camping?

I have been asked to join friends for a week's backpack camping trip.  Having gone on primitive camping trips extensively in my younger years (I'm still active but 70+ years old), I welcomed the opportunity but currently suffer from Gastro-Esophageal Reflux Disease.  I am required to take oral medication and sleep on a 'bed-wedge', a large piece of foam 24" x 24" x 6" at night.

For those campers reading this blog with GERD, how do you address this issue?  Do you routinely carry a 'bed-wedge' with you or have you 'adapt and improvised' something which is more convenient to carry in your carry pack or otherwise?