My understanding of working with darker entities sometimes is matching with the process of working with darker aspects of oneself,
for example being tested in different ways, mostly keeping ones part of the bargain is enough, but still, some will only work with you if they feel you're proven worthy. So i would even argue that, even if sleep paralysis is a kind of tormenting state, it is almost the ideal 'kind' of intensity.
Of course most would prefer 'normal dream visitations'.
I had no such things happen to me, but I was told by someone i once got to know that she was having these things happening on very deep level for a long time. She also figured that it happens more often with RH-Negative blood types, like her type, the most rare one, type 0-negative. She also was a doctor and not the 'braggy type', so i have no reason to distrust her. She aslo mentioned other things like the radio in her car reacting to her physically and such things - like when her hand comes near she always changes the channel by accident and so on.
There are many myths and theories on this part of the phenomenon, some connect it to nephelim and certain metals that are prevalent in the blood that stem from different types of evolutionary circumstances. But that is to be taken with a grain of sulphur
Basically some connect these sensitivities or psychic tendencies to physical aspects too.
I guess working with dream related entities and working on gaining control in these realms, being it lucid dreaming or creating ones astral place etc could help to get through this with more control, if that even is what you would want?
Forgot where i heard that one, but i also heard that there are ways to break out of the paralysis and go directly into the astral so to speak, because the paralysis is closer to this realm than a regular dream is.
Hellena, could you maybe expand a little on the entities you mentioned and where to find resources to learn on such things?