MASON CITY, Iowa (AP) – A Mason City mom has been accused of making her kids sleep in a feces-covered room. Online court records say 25-year-old Alexis Martinez was arrested Monday and is charged with three counts of felony neglect of a dependent person. Cerro Gordo County Jail records say she remained in custody Tuesday.  Court documents say Martinez forced her children, ages 2, 4 and 6, in late August to sleep for a week in a room that had feces on the walls and floor.