I'd say about 50% of the time that I lie down to go to bed, I feel the sensation of my bed shaking as though an earthquake were happening. This doesn't happen when I'm half asleep; it happens when I'm still fully awake but trying to sleep. In fact, it's so distracting that it makes sleep more difficult to initiate. I've never experienced this when sleeping on the couch though, or any other surface for that matter.
Every single thing I'm finding online about this is some hocus pocus spirit haunting crap. Also, it's just a gentle giggling or swaying of the bed, not a vibrating or buzzing as some online describe it.
I'm not on drugs or alcohol, don't have sleep paralysis, and don't believe in spirits, just to rule those out.
Has anyone else experienced this?