Use the 0°C (32°F) down clothing you're already carrying to boost your sleeping bag's warmth by 5°C

Use the 0°C / 32°F down clothing you are already carrying to boost the warmth of your sleeping bag by 5°C .
Gear mentioned in this video:
Wafer Down Jacket:
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Wafer Down Trousers:
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Wafer Down Socks:
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M.Degree 100 K Down Sleeping Bag:
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M.Degree 250 K Down Sleeping Bag:
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