So this morning right before I got up, I could feel my bed shaking for like ten-fifteen minutes, and I remembered that this has happened before a few times, though not very often. Anyway it's a slight shaking but you could definitely feel it. First I thought it might be a small earth quake, but strange thing is that I have a glass cabinet right outside my door, and if only so much as my cat walking by it the glasses start clanging very loudly against each other. but it was silent and nothing else seemed to be moving or making noise so I assume it was only my bed. There are no roads or railways outside my house either, you have to walk a bit till you get to the street, and I heard no cars outside my house.
So what could this be? Could it be something with the bed itself? Has anyone else experienced this? I just hope I'm not going crazy here

And before anyone asks, yes I was definitely awake, and no I don't believe it was anything paranormal.
Oh, and it's just a regular small bed, not one of those with electronics and remote and stuff.