1. First, stack any four-piece suit and one of the pillowcases neatly. Then, fold the bed sheet and quilt cover into a rectangle with similar size.

2. Secondly, stack four sets, including 1 pillowcase, 1 sheet, 1 quilt.

3. Then put the folded pillowcase, quilt cover and sheets into the unfolded pillowcase.

4. Fold the edge of the pillowcase to smooth the wrinkles and make it smoother.

5. After the final completion, put them back in the original packaging.