As Herbert is sitting at the bus stop, a small red lunch box appears in one scene, but in the next scene he's again without it.
Herbert's mattress suddenly changes to an air mattress the first evening he's going to bed.
Herbert dismantles the bunk beds before he goes to sleep. However, when he runs back to his room after he sees all of the girls, the bed bunk beds are put back together.
During many of the scenes, Herbert is wearing a wedding ring.
When Herbert (Jerry Lewis) is fixing Willard C, Gainsborough's hat, and his back is turned to the camera, he can be heard audibly laughing at his own antics.
When the bus stops at the bus stop, you can see the camera boom's reflection on the side of the bus.