Snugpak Hammock Cocoon Insulation System OliveThe Snugpak Hammock Cocoon is another addition to the Snugpak Hammock Sleep System designed to ensure a warm and comfortable night's sleep. Unlike other hammock insulation solutions, the Cocoon completely envelopes the whole hammock ensuring warm air is trapped both within the hammock and also in the Travelsoft insulation. It also helps prevent the loss of insulation that clothes and sleeping bags suffer from when they are crushed against your hammock