Because of back and leg problems, I like to read by lying flat on my back with pillow under my head and kindle propped on my chest. Ideally, I want to have something light that I can put on my chest that will hold the screen about 4 inches off my chest, at a ~70-80 degree angle (ie slightly tilted toward my face). Right now, I use a small pillow but I still have to use my arm and it gets tiring quickly (different physical problem). I plan on getting the pw so there will be no need to accommodate the buttons.
Ideas greatly appreciated. Especially simple and economical ones