... there is an old saying than 500g silk is like 1,500g cotton in warm keeping, therefore the cold in the sleep ... make it fluffy for all day longCharacteristics of silkCharacteristics of silk: rare, natural,comfortable, healthy, uviol-resistant and capable of ... curve.Health:Moisture maintaining, dry-resistancee: the azelon of the silk contains lots of hydrophilic radicals, such as amidocyanoge. (-CHNH) ...