I had my order all written up to send Brandon yesterday when I realized that I have a dilemma whether to use a right or left foot box. It's necessary for me to lay on my left side when I sleep, in a hammock or in bed. Having only used the Speer IIIA I found it necessary to lay on a diagonal from right to left with straight legs, so I thought LEFT foot box. Then I realized that in a bed I bend my knees so that my feet actually go to the RIGHT. I set up the Speer yesterday and between it and the bed tried to simulate, but it won't work. So at this point I'm open to experiences and suggestions. Thanks in advance.