I'd like to draw attention to why your arm is falling asleep and the frequency this is happening. What is the position of your arm(s) when you sleep? Are you able to stop doing this? I have problems with the fingers on one hand aching and/or feeling tingly when I sleep. I wake up feeling awful and annoyed. But I habitually sleep with my hand balled in a fist beneath my body. I think what is happening is that you are inadvertently cutting off the circulation to your arm in some way. Try then to sleep with the arm in a different position if you can.