...be SURE to move/remove any/all electronic or wireless devices from the bedroom. 10 feet from the head is the absolute 'closest' any of these should ever be to ones head/body when sleeping. All wi-fi devices and Cell Phone s should be OUT of the bedroom at night. No electric blankets (waterbed heaters are also bad - I try to remember to unplug mine before going to bed).
The build-up from the EMF's (and radiation) can indeed cause insomnia, and a full genre of other symptoms and imbalances.
Barefooting will pull them out of the body and into the earth...many of us can actually feel the electricity and 'electro poison' leaving through our feet & legs.