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Amazon.com : Naturehike Ultralight Inflatable Sleeping Pad -R-Value 5.8 withstands -20°C 8 Layers and Aluminum Film Insulation,for Camping, Backpacking, Hiking, with Inflatable Bag (Mummy - Standard) : Sports & Outdoors
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How Do Sleeping Pad R-Values Affect Sleeping Bag Temperature Ratings? - SectionHiker.com | Sleeping bag, R value, Sleep
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