Is there such thing a unemployment mortgage insurance?

Is there such thing a unemployment mortgage insurance? That is, insurance that pays the mortgage in the case when you are layed off.
Where can I get some

For loans secured by Mortgages, such as Residential Housing Loans, and Lending practices or requirements Provides information about Mortgages, Mortgage Rates, Home Refinancing, Home Equity Loans and many other Mortgage related topics

For loans secured by mortgages, such as residential housing loans, and lending practices or requirements Provides information about mortgages, mortgage rates, home refinancing, home equity loans and many other mortgage related topics. Try our free mortgage We maintain an extensive database…

How exactly do ‘interest only’ mortgage loans work? When do I pay on the principle of such a loan?

I know APR loans are a bad idea, but how would an interest-only loan work? Would it still be a 30 year note, or do they extend the loan? Would I be able to get a fixed rate with an interest-only mortgage loan?