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Closed Cell Foam Pad Mistakes in Cold Weather
Cold ground pulls heat from your body faster than cold air. This short explains how to properly use a closed cell foam sleeping pad in colder weather to reduce heat loss and stay warm. A single closed cell foam pad has an R-value around 1.9, which is generally only good to about 60°F. But when you fold the pad, you effectively double the insulation to roughly R-value 4.0, making it usable down to about 30°F.
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