Sleeping on back with head elevated??

Al

I’m 33 weeks pregnant and I’m having so much trouble sleeping. I know sleeping my my back is a no-no, but I’m now having bad hip pain sleeping on my side sometimes.

I have a really comfortable recliner couch and was wondering—is it ok if I sleep on that? Im not fully on my back complete flat, I’m at slight angle and I can always adjust it from sitting upright to like Halfway down