canadababy (701.7 days ago) We put a humidifier on for our DD and she seems to sleep as long as normal or longer when she`s sick. Although she may get up once or twice crying which is unusual, she sleeps about 11-12 hours when she`s not sick and at least 12 hours when she`s sick. She`s never been a great napper though, that doesn`t change when she`s sick. EditDelete