Which is warmer, the double cocoon silk quilt or the ordinary mulberry silk quilt?

Gong Shuang cocoon silk is slightly longer, and ordinary cocoon silk is slightly shorter, which is just the chewing head of the merchant. Buyers don't have to care so much. As long as you distinguish between a few percent of mulberry silk and a few percent of tussah silk; Of course 100 mulberry silk is the best. Some merchants use 100% silk, which you should ask clearly.