“Lv Zhong Yuan” children sleeping bag is produced in humanization design, which solve the problem that children kicking the quilt in sleeping. Its cover and lining are made of 100% cotton, and filler are 100% natural super silk. The natural silk contains a substance of “hydrophile lateral chain amino acid”, which can absorb and eliminate the sweat and water let out by human body and keep dryness and air permeability. (Generally, the natural silk contains water by 8-14%, rated water centent is 11%, and we don’t feel wet at 30% when in saturation.) this sleeping bag may be used as arm blanket or small blanket. It has fastener at the head, it can form a hat when the fastener is pulled together. It is the best choise for children sleeping bag with its complete functions.