Cocoon Emergency Sleeping Bag - 4 packs. Cocoon All Weather Pocket Size Sleeping Bag provides personal protection from rain, wind, heat and cold. The Cocoon Emergency Sleeping Bag is manufactured from extremely lightweight, flexible, space-age material, and retains up to 90% body heat in cold weather. The Cocoon Emergency Sleeping Bag even deflects heat in hot climates and can be used to offset hypothermic reactions. The Cocoon Emergency Sleeping Bag is waterproof, reusable, and portable. Keep several on hand for the unexpected! Opens to 84" x 36", Lightweight 2.6oz.