are you using a pillow between your knees - that helped me heaps.
yep im using a nice firm pillow which does help, but i can't turn over (or under) in bed without searing pain, so spend the whole night (well 5 hours!!) on my leftside which when i get up is so painful i can't walk straight away, have to give myself 5 or so mins just be able to support my weight when i stand.....not fun with a full bladder bursting to get out!