Can a cat get more fluffier in week?

It is unlikely that a cat's fur would become significantly fluffier in a single week. While cats naturally go through changes in their fur texture and density due to seasonal shedding and growth cycles, such changes typically occur gradually over several weeks or months. The rate at which a cat's fur appears fluffier could vary between individual cats and depend on factors such as genetics, environment, diet, and grooming habits. For noticeable changes in the fluffiness of a cat's fur, you might observe these over the course of weeks rather than just a day or two.