I put three pillows I front of the headboard standing on their sides then my v pillow, then another pillow on top of the top of v pillow to rest my head on, then one behind my back and under my lower back and bum, this has helped me get rid of my numb bum and lower back pain! Pillow under your knees is a good idea, I did this for my first surgery, this time round I’m better and lying not so sat up, just persevere it’s horrible I know!