Yes, I occasionaly get the pins and needles feeling as well and I think I have an answer for it- though its something I just thought of so no promises. Usually the pins and needles feeling is in the hands or feet because the blood gets cut off during sleep or sitting in an akward position and during pregnancy alot of blood is being concentrated to the placenta- Its what makes some people feel dizzy when standing up or feel faint. I happen to have awful circulation anyway- my hands and feet are always cold -so I think maybe if you can force circulation into your hands and feet before sleeping it could help, like maybe by rubbing your hands and feet and flexing them often. Also sleeping at more or less of an elevation may help. O Let me know what happens!