Hi
Read your post re your mum's C/S problems. You mention that the symptoms get worse when she lies down. Perhaps you could consider maybe trying to help her sleep on a sofa instead, just temporarilly. I find this can really help shift the aches etc so they don't set in like they do with repetitive habits like always sleeping in same bed in same position. A memory foam topper for mattress, and a proper cervical pillow can also help ease problems, and check to make sure she doesn't have a cold draught (an open window or such) playing on her neck all night.
Gerry