Lamp Issues

This is our bedroom.

Notice the pretty little lamps on the sides of our bed?  I love them...well, I used to love them.  A few weeks ago I was sleeping and something very odd happened.  I woke up in the middle of the night with that lamp laying across my face!  It was weird and I didn't quite know what to think of it.  I felt invaded but I set it back up on the nightstand and went back to sleep.

Well, last night a small crashing noise woke both Dustin and I up in the middle of the night.  We questioned for a second what that could have been, but we went back to sleep assuming it was from outside.  This morning we saw that the lamp had fallen off the nightstand and crashed upside-down on the floor.  The crashing noise was the bulb being crushed to tiny pieces. 

For the first lamp incident I just thought I had accidentally tugged on the chord and pulled it over onto me.  This second lamp incident seems much more violent.  Am I subconsciously a violent sleeper?  Do I literally sit up and swing my arms around in the middle of the night, trying to knock anything down around me?  Should Dustin be worried for his safety? From my knowledge I've always been a peaceful sleeper, so much so that my covers hardly ever move and I basically wake up in the same position that I fell asleep in.  I am seriously questioning that now.

This is what we woke up to this morning.

Is there another explanation for this madness or should I just start safe-proofing the area's where I sleep?