Right thigh numb

I still have to sleep on my back because sometimes laying on my side it still gets a little sore. But last night I woke up to my leg hurting and then it went numb like it was a sleep. Have this happen to anyone else? 

I have not heard of this before, but to be safe, I would give your surgeon's office and/or your PCP's office a call and talk to the nurse.  Let them know what is going on and see what they think about it. 

My right thigh was numb for almost 3 months post op. My surgeon said that the nerves that run through it also run up the right side of the abdomen. He said it's possible that one got irritated by an incision. Definitely ask your surgeon about it, but it's probably nothing serious. 

Weirdly, since having my gallbladder removed three years ago, my "saddlebags" (outsides of my thighs) go numb if I lie flat on my back for more than twenty minutes.  It's slowly gotten better, but it's still noticeable this far out.  I always wondered if it was associated with the surgery or not.

I didn't have this after surgery, but i did have a similar experience when i slipped a disc. A "thrill" when down my leg which left the top of my thigh and the top of my foot numb.  If it continues, you need to have it checked.