The silk quilt (silk duvet)is durable, it can be used for at least 10 years. During this period, it will not metamorphose, nor turn into dumpling or wisp. It is also famous for its good toughness. The silk can maintain constant temperature and humidity similar to the body, make you not feel dried or inflammable. It is very comfortable because you will feel warm in winter while cool in summer when you using it. This will improve the sleeping by avoiding the children from kicking off the quilt. The aged suffered from arthritis and insomnia can also benefit from using it. In one word, it is different from any other quilts made by cotton, chemical fiber, wool and feather for its special advantages and comfort. It also has much difference from the quilts made by machine, medicament, or tussah cocoon for its high quality.