I am suffering from this very same problem. I have treated my bed for bugs/mites by steaming it and using a natural bug deterrent - just to be sure although I doubt it was bugs of any kind. There would have been bites - we have had fleas before (2 dogs 2cats household) and I am highly allergic to those - when I get bit by a flea it swells up to look like a welt. I have investigated mites and bedbugs online and their bites are also visible, there is nothing on my skin.
However, I just found a possible answer - one that makes sense and means I need to make some appointments. It could be a form of restless leg syndrome ... instead of the neurons misfiring info that make the legs twitch and jerk it is sending a message that you have itchiness all over ... Since it is the night before Thanks giving I won't be in touch with any doctors till next week but this seems like a promising answer. There are treatments for RLS so maybe ? Well, maybe I will be able to fall asleep again like a normal person with out itching, scratching, rubbing, huffing and puffing and my husband will be able to as well ..lol
I just wanted to share this find with the forum, I hope it is helpful.
Still looking for the right answer - I will get back to this after my Dr. appointments
Oh, and taking benadryl or a OTC sleep aid does seem to help (although not completely) but I would really rather not take them because I am very sluggish the next morning. *sigh*
Can never win ... lol