My husband is classified as incompetent. He made no one as a POA so now we can't pay bills because the checking account is his name only

Husband never appointed any one as POA. He is in a hospital now an a physiatrist said he isn't able to make his own decisions, but then they ask him he had a UTI so that helped him to be some what delierius. He has a checking account in his name only how can we pay for our bills since he can't make decisions?