How to set quilts in five-star hotels?

When wrapping the bed, tuck the drooping sheets under the mattress; Wrap corners: that right hand pull up the drooping sheets on the right side, the left hand folds the sheets on the right corner into a right angle, then the right corner pulls down the folding angle vertically to wrap the sheets into a right angle, and the right hand tucks the remaining drooping sheets under the mattress. Every corner is important, and it is a right angle. Put the quilt into the quilt cover, with the four corners symmetrically laid flat. The distance between the quilt and the bed head is about 30cm, the quilt head is folded back by 30cm, and the distance between the quilt head and the bed head is about 60cm, and the two sides naturally droop. Pillow core sleeve must be full and smooth, and the pillow core is not exposed.