Little People Big World stars Zach and Tori Roloff fear their daughter’s “night away” isn’t going to go well during Tuesday night’s episode. Three-year-old Lilah Roloff packs her bags to leave home, and most of her family, to complete a sleep study vital for any potential future health issues. An all-new season of Little People Big World sees Zach and Tori worrying. There is more drama on the horizon in season 25 as Amy heads up a charity event, Zach suffers a medical emergency, Matt proposes to Caryn, and the TLC family deals with the fall-out of the farm sale failure. Little People Big World…