The Textorcist: The Story of Ray Bibbia

This achievement is missable. After you complete the "Magda the Possessed" mission, Magda will appear in the bed in your house. When you walk up to her, you'll be prompted to type SLEEP. Do this three times to unlock the achievement. You can't get this achievement after you progress further (third mission and beyond) as Magda will wake up and appear elsewhere throughout the remainder of the story.