It also depends a lot on the person. I cannot lie on my left side when I sleep - only on my stomach. I also struck out with the wedges, I kept rolling off or winding up with worse reflux cause I was bending strangely at my midsection. Most GERD advice sites recommend against them.
We raised the head of the bed and my husband didn't mind it at all. Maybe just try it and see if your wife minds? We are both students but my husband and I can't wait until the day we can buy an adjustable bed. For now, when I have reflux I sleep on the couch. Definitely not nice!