When Nancys parents win an all-expenses-paid vacation, Nancy and JoJo get to sleep over at their neighbors home, Mrs. DeVines. But JoJo is a little nervous to sleep at someone elses houseluckily Nancy is an expert on sleepovers and can help prepare her little sister. The big night arrives, and JoJo and Nancy have a blast at Mrs. DeVines. But when its time for bed, it turns out Nancy wasnt as prepared as she thought. Good thing there is nothing better than a sister to make you feel better.When Nancys parents win an all-expenses-paid vacation, Nancy and JoJo get to sleep over at their neighbors home, Mrs. DeVines. But JoJo is a little nervous to sleep at someone elses houseluckily Nancy is an expert on sleepovers and can help prepare her little sister. The big night arrives, and JoJo and Nancy have a blast at Mrs. DeVines. But when its time for bed, it turns out Nancy wasnt as prepared as she thought. Good thing there is nothing better than a sister to make you feel better.