My husband is 68 years old and in good health. I would like

My husband is 68 years old and in good health. However, I am interested in the purchase of a life insurance policy on him - with me as the beneficiary on it - so that should he die before me I could collect non-taxed money to live on... Does this kind of life insurance policy actually exist? If so, is this a wise thing for me to do? If not, what do you suggest? If so, is it possible for me to purchase it? Is it really non-taxed? How much would it cost?