Thanks @gbells! - I'd never heard of earthing till I read your post, which inspired me to Google it. Earthing sounds very interesting. How much has it helped you? Have you tried a "grounding mat", and if so, how helpful or not has it been? (I live in an apartment and it's difficult to find somewhere outdoors I can walk barefoot).
Grounding systems were too expensive so instead I bought a static wrist band attached to a wire with a grounding plug and would sleep grounded overnight. I used to have no deep sleep but that normalized it. As my ME improved through immunotherapy I reduced the amount of time I would spend using it to just 5 minutes before sleep and to reduce excessive immune reaction to improve sleep. Now I don't use it and have no problems with sleep. https://www.ebay.com/itm/earthing-kit-grounding/254735896236?hash=item3b4f714eac:g:HSUAAOSweXpfdjcW