No one really knows what mattresses are meant to gain from their lives either. They are large, friendly, pocket-sprung creatures which live quiet private lives in the marshes of Squornshellous Zeta. Many of them get caught, slaughtered, dried out, shipped out and slept on. None of them seem to mind and all of them are called Zem.- Douglas Adams
From Marvin and the Mattress in Life The Universe and Everything.