I was very excited to get this pillow. After having hip replacement surgery, my back was in a lot of pain. I had been sleeping with a small pillow between my legs since the surgery, but I thought this new pillow would be better and I could turn from side to side with a little more ease. My back actually did feel a little better for the week that I used it, but the rest of my body was in so much pain that I finally had to stop using it. It didn't fit between my knees since I sleep with them slightly bent, so I either had to sleep with it between my thighs or my calves and neither of these positions provided a good night's sleep. I tried it for a week and after waking up in so much pain, I decided to give it up. I've gone back to using my small throw pillow and it seems to be doing just fine.