A mattress and adjustable foundation selection system and process generallyincludes a mattress having a pressure sensor pad configured to detectlocalized pressurechanges on a sleeping surface as a function of a subject lying on the mattressoptionallywhile the comfort of said mattress is adjusted by means of one or more fluidfilledchambers; an adjustable foundation adjustably supporting the mattress andconfigured tochange the mattress from a planar configuration to a non-planar configuration;and adisplay for displaying a contour map associated with the localized pressurechanges. Themethod includes positioning a subject in a sleeping position on a planarsurface of amattress operatively coupled to an adjustable foundation; displaying to thesubject acontour map of localized pressure changes as a function of positioning thesubject onthe mattress planar surface; adjusting the adjustable foundation and changingtheplanar surface to a non-planar surface; and displaying to the subject acontour map ofthe localized pressure changes associated with the mattress non-planarsurface.