Overnight cooking in an oven isn't inherently unsafe. Modern gas home ovens, for the past 40 years or more, are equipped with sufficient safety features to preclude worry. The gas valve will not open unless the ignition source, whether that is a pilot light or heated electric igniter, is ready. The biggest problem might be sleeping while the delicious smells are wafting through the house!
10/23/16 at 11:43am