While the Children Sleep (also known as The Sitter) is a 2007 American made-for-television horror film directed by Russell Mulcahy and starring Gail O'Grady, William R. Moses, Mariana Klaveno, Tristan Lake Leabu, Madison Davenport, and Stacy Haiduk. Released on the Lifetime Movie Network, its plot concerns a couple who hires a live-in nanny who inserts herself increasingly into the family routine. Then friends of the family begin to have mysterious accidents, as the nanny conspires to replace the mother through murder.