No, it is not recommended to leave your cat alone with the Iseebiz Automatic Feeder for more than a week.  The feeder's capacity is designed to last for about a week, providing up to six cups of food.   If you anticipate being away for a longer duration, it is advisable to consider an alternative feeder with a larger capacity, such as the PetSafe Healthy Pet Simply Feed Automatic Feeder, to ensure your cat's nutritional needs are met during your absence.