I didn't until recently. I don't get any of the sensations associated with it, but it just calms me down and helps me sleep.
Call me simple minded, but I kinda just like listening to the soft voice of a pretty female when I'm falling asleep....
I was just curious if anyone else here was really in to it. What reasons do you watch it, and do you actually feel anything from it?
Here's a favorite of mine:
https://www.youtube.com/watch?v=SC5ISZjBjrk