Over the last few months I've been experiencing a lot of sleep paralysis which seems at the moment to be occuring almost on a weekly basis. My first experience of this happened a couple of years ago and was utterly terrifying since I came face to face with the archetypal 'Hat Man' that one often hears other sufferers of sleep paralysis talk about.
However recently the experience has become more enjoyable, in the sense that I am starting to experiment a little more with the phenomenon. The situation is usually the same, I wake up, find that I cannot move, realise that I am experiencing sleep paralysis, and when I try to force myself to move my body feels like it is numb or vibrating, accompanied by a sound similar to very loud feedback that one might expect to hear from a microphone that has been placed too close to an amplified speaker. Finally when I do manage to move I get an audible "pop" which concludes the entire event.
Something about this utterly fascinates me, and I am intrigued by the somewhat electrical/electronic feel of the whole occurence.
The following video is an interesting Channel 4 documentary on the matter entitled The Entity.