1. Usually the quilt covered will be heavier than the quilt covered, and some old cotton will be used. This is because the heat emitted by the body is transpiration upward when sleeping, so the heat stored in the back is less. In order to prevent catching cold, a thicker quilt is usually used. The quilt is thick, and the weight is often pressed on it, so the quilt has small air permeability and slow heat dissipation.
2. After the quilt is pressed, it will appear heavier, and the cotton inside is unevenly distributed, so if it is used to cover again, it will feel that the quilt is heavy and uncomfortable to press on the body. In addition, there may be some places that are thin and easy to cause colds;
Of course, this is just a statement. If it is not padded for too long, it is interchangeable.