(n.) The quality or state of being squashy, or soft.

bathos bleeding heart cloyingness doughiness flabbiness fleshiness goo hearts-and-flowers mashiness maudlinness mawkishness mush namby-pamby namby-pambyism namby-pambyness nostalgia nostomania oversentimentalism oversentimentality pastiness pithiness pulpiness pulpousness romanticism sentiment sentimentalism sentimentality slop sloppiness slush soap opera sob story softness sponginess squashiness succulence sweetness and light tearjerker