A silk sleep sack is a wonderful traveling accessory because it protects you against a multitude of things. It can protect you against biting insects like mosquitoes and bed bugs. It can serve as a liner to protect you from being exposed to the questionable cleanliness of a night’s sleeping accommodations. They can also be used when camping to add extra warmth and additional feeling of breathability in a sleeping bag.
Silk has many great qualities. It is very absorbent. The fibers are hygroscopic and able to absorb one-third of their own weight. The moisture is easily evaporated into the environment or passed on to the outer layer of fabric.
Silk contains sericin, the binding gum secreted by the silkworm. It is made up of an essential amino acid that acts like lanolin in wool providing a substance that makes the silk hypoallergenic and perfect for sensitive skin.