Sleep Paralysis

I had a session for some time ago after pulling an all-nighter (because i had an opening shift at the airport) and wanted to experiment with sleeping with the aneros.

Shortly after i came home i took a shower, slipped it in and laid myself down on the back with feet flat on the bed and a pillow by my bum.
I really didn't experience much until i tried to fantasize about some sex scenarios with my previous SO's and suddenly began to feel some kind of "glow" - i can't explain the feeling and the closest to it must be some kind of glow. I tried to localize the glow with the aneros and tried to tilt it with my anal muscles and i remember when i hit the spot the glow kinda got stronger, but it just stayed there - it was a very pleasant feeling, but it went nowhere.

I've read alot in the forums and also the wiki and learned as much to not try that hard to achieve something but just go with the flow.
After 5-10 mins of having tilted the aneros on that little 'glowspot' i tried to tilt it from side to side downwards or up but the glow stayed only at the right side. I shortly fell asleep afterwards but i remember right before i fell asleep that the glow kinda diminished and turned into what i can only describe as a tree rooting. It felt like the glow turned into roots and it went all the way up to my navel and then i fell asleep.

When i woke up i was all paralyzed, but it was a different way.
I've had sleep paralysis before and the fear that comes when you wake up and cant move and barely breathe is so frightening so it would be a super turn off.
But when i woke up i had no fear, but i couldn't feel the aneros either. I could just feel my whole body being heavy but i also knew that i was able to move, but i tried to ride it out and just try to feel my whole body getting heavy.
As i did that i just got more and more aroused to the point where i just said fuck it and began to stroke my cock really fast.

I was so aroused that i turned on my computer and found some porn and, sadly, had a traditional orgasm.

Anyone experienced this before about the sleep paralysis? If not, what should i do about the little glow when it comes again?

I've had around 5-7 sessions since then and i can't remember having something as pleasurable as the weird glow feeling.

oh and yeah, i used a helix classic.