If I understand you correctly, he was just taking it as prescribed, not an overdose
? It's hard to see how that would have caused his death
, unless it was an extreme allergic reaction, which is certainly far from common, as this is one of the most frequently prescribed sleep medications in the world. I've been taking it for years with no ill effects. I'm sorry for the loss of your husband, but there has to be more to the story than this.