That's frightening. Do you recall what weight the blanket was?
it felt like an xray vest, i dont recall the wieght on it, perhaps 10 lbs folded up?
I really liked how it felt but there was like a 50% chance of me getting sleep paralysis and feeling extreme terror, so my weighted blanket experiment only lasted a week.
I'm searching for a 100 pound blanket to test the sleep claim at the extremes. Hard to find though.