The cotton four-piece suit is made of cotton through a special textile processing. It has the advantages of keeping warm, keeping moisture and absorbing moisture, which makes us feel very comfortable and healthy when sleeping. However, the cotton four-piece suit is easy to shrink into a ball after cleaning, and long-term cleaning will lead to wear and tear and shorten the length. Therefore, when we choose and use the cotton four-piece suit, we need to pay attention to its softness, breathability, simplicity and rationality, and clean it according to the precautions of the product.