The pillow aids do a great job of relieving the pressure and keep my arms ...
I sleep on my side with my arm under my pillow and every night, I would wake up several times with my arm numb and cold from my head cutting off the circulation.  The pillow aids do a great job of relieving the pressure and keep my arms from going numb.  They fit well and most of the time, they stay nicely in place.  I bought (2) but so far have only used the one.  It is pretty easy to switch from arm to arm when I flip at night.  They do not feel lumpy under my head either.  Good product.  Well worth the cost.<br />I have been using one for about 2-3 weeks now.
Rating: 5 stars