This is the Craftmatic Bed company trying to con you into delivering their product.  The unfortunate thing about this is the hours and their persistence in annoying people who have no interest in their product.  The only answer to solving the problem is to report them to the Do Not Call authorities.  The more unfortunate situation in Pennsylvania is that the politicians have excluded more people from having to comply to the DNC list than they have left on it.  Its amazing what a political donation can do for you if you are a telemarketer.