What is the slang for men's four-piece suit?

Men's four-piece suit refers to men's bedding.

Men's four-piece suit refers to men's bedding, including pure cotton quilt cover, pure cotton pillowcase, pure cotton sheet and pure cotton bedspread. Bedding is made of pure cotton, which is soft and comfortable, moisture-absorbing and breathable, and skin-friendly. Men's four-piece suit can improve the quality of sleep and create a comfortable sleeping environment for men. Whether at home or in hotels and other places, men's four-piece suit is one of the common bedding for men.