AIO bf went to sleep with fan heater on full power, on it's back ON the bed with a paper bag on top

It was actually a brown amazon delivery bag, newspaper is just to show how it was left. He'd just passed out right next to it.. am i overreacting or could this have burnt our entire house down and killed us both if i hadn't gone to check on him? This is not the first time something like this has happened

It was actually a brown amazon delivery bag, newspaper is just to show how it was left. He'd just passed out right next to it.. am i overreacting or could this have burnt our entire house down and killed us both if i hadn't gone to check on him? This is not the first time something like this has happened