Nod-Pod 100% Pure Silk Sleeping Bag Liner Black Description n100% Pure Silk LinersnOur pure silk sleeping bag liner is ideal for anyone who wants a touch of luxury on the road. Made on traditional looms in small batches, our 100% pure mulberry silk is super soft against the skin. In cooler climates it can be used to add 5C of warmth, making it a great asset for air-conditioned environments and for use with your cold weather sleeping bag for extra warmth, to prolong the life and reduce the need for washing.n Keep mosquitoes and bed bugs at bay by adding an extra layer of protection.