Here is the book. $7.69 for the kindle edition, and you can download the free reader if you don't have a kindle.
The best time to Earth is when you are sleeping. There are some simple straps you can buy, or make your own. There are sheets, mouse pads, floor mats....
I've got all 4 sisters earthing now, my cousin and her husband, nephew and his wife, his wifes mother. It really works.