Thanks for all that info, James. Sounds like an excellent project to add to my husband's 'honey-do' list!
Sounds like that can take a while. This really is something you can easily do.
Forgot to add that if you do not want to attach it to your ankle and you want to see if grounding will help your sleep you can simply lay the conductive foam on your bed where it will contact your skin while you sleep. As long as it is contacting your skin and it is connected to a ground it will work.