I have only ever experienced this phenomenon on one occasion during the mid 1980s, when I was living in a rented bedsit in North West London. It has never occurred since and probably because I instinctively dealt with it in the right way. It was not until I discovered the website http://www.stopsleepparalysis.org/almost thirty years later that I had any insight into what I had experienced or how widespread a problem this is to so many people.
What I experienced left me with a reinforced understanding of the power that is in the very name of Jesus alone against such spiritual entities as would seek to invade our lives. For any “purists” who say that you should only use his Hebrew name, I say that the name has power in any language if you know who you are calling upon and I have proved this over time in many life situations aside from this one. It also allowed me to experience the perfect peace that our Saviour is able to to impart under such circumstances. I do not know what preempted what I experienced. There are a number of possibilities but I can only speculate.
I would recommend anyone who suffers from this phenomenon or has suffered in the past to visit the site I have indicated here and take counsel from the material within it. There are a number of accounts of personal experiences which people have posted on this site and I have recently added my own to them. What I experienced was relatively mild compared to others but real enough at the time. I would urge anyone reading this not to read such accounts out of simple curiosity if you are not a Christian or have not experienced such things but by all means consider the content of the video below.