Mariana resided, during her lifetime, in Lucky Palms, one of the neighborhoods that is available through The Sims 3 Store. She was the wife of Omar Matlapin, and the mother of Darleen Dreamer (née Matlapin). Sometime before the start of The Sims 2, Mariana and her husband both died of unknown causes. Their daughter later moved to Pleasantview, which is where she married Darren Dreamer, and gave birth to Dirk Dreamer, who is Mariana's grandson.