Adventure Medical Kits - Adventure Discussions

Emergency Bivvy

Is it better to put the sleeping bag inside the bivvy, put the bivvy inside the sleeping bag, or ? Please let me know what you think.

Robert, If you use it inside the sleeping bag – you will get clammy and experience the condensation next to your skin. You will also be quite warm. This option will keep your sleeping bag dry. If you use it on the outside it will act as a water and windproof barrier for your sleeping bag and will raise the bag temp. rating by about 15 degrees F. The outside of the bag will get moist, but you will sleep dry. If you are using a down bag with a non waterproof shell than the down could get wet from the condensation and reduce the thermal capacity of the bag. Frank

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