Hi Jake,,
I too have experienced what I describe as a translucent shadow person. One night while I was experiencing what I believe the in between state of Hypnagogia, I looked up near the window and saw a 4 foot translucent being in the room. It seem to be like glass or water in the shape of a shadow being. I can tell you it scared the you know what out of me. It seemed only wanting to observe me and actually had a facial expression that looked calm and content. 
But most of my experiences have been with the dark shadow people. I do recall a portal on the wall one night with the shadow beings about. The shadow person that most sticks out for me is the  silhouette of a male shadow being in the hallway. As I kept watching him he suddenly noticed he was being watched and collapsed into a triangular shaped and with an unbelievable amount of speed shot down the hallway towards my daughter’s room. That was very bizarre.  I can tell you over the last five years I have not experienced any shadow people or translucent beings. This almost creates an anxiety because I’m wondering if all the experiences I’ve had are it or will they return one day. I am also a big skeptic and not mentally challenged so it’s good to hear from other people who are or have experienced these situations. But one theory I have, is that these shadow people are not actual physical entities that enter your room at night but are projections representing a visit into our physical world to observe and possibly modify our situations.

Thanks for listening