Easy French Toast Bake

Slice bread into approx.1/2 inch slices (I didn't measure...lol). Arrange the slices on the bottom of a 9 x 13 inch pan. Layer a second layer of slices on top of the first. Mix eggs, milk, vanilla and sugar in a mixing bowl until well mixed. Pour the egg mixture over the bread slices so that every piece has been covered. Cover with plastic wrap and place in the refrigerator overnight (or at least 2 hours).