... is 100% silk fibre . 2.It is confirtable and useful for the heath. filling 100% spun silkcover 100% cotton1)Silk fiber ... )Sleeping on the silk not only will let you feel comfortable, luxury, silky, will let you feel satisfied, calm, to shorten ... period to get asleep, you will feel it is warm in the winter, and cool in the summer, but also will let ...