You’ve probably seen a movie or TV show where the intrepid hero is trapped in a blizzard or snow cave and snuggles up with the hot blonde to conserve body heat. Although this trope has been thoroughly played-out by Hollywood, there’s truth behind the claim. Staying close to another warm body can help you keep your core temperature up throughout the night and avoid hypothermia. So although the hero probably has something else in mind, his survival logic is sound.

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If you go camping with your spouse or significant other, you might rely on separate sleeping bags, or you might zip together your sleeping bags to form a larger blanket. Klymit has developed what it says is a better solution. The company’s new KSB Double sleeping bag that allows enough space for two people, and also offers some clever features to help each individual regulate his or her body temperature.

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The KSB Double sleeping bag contains 650-fill-power white duck down inside a soft-touch sil-nylon fabric shell with DWR coating. The bag is rated to 30˚F, and packs down smaller than two full-size bags thanks to its integrated design. The oversized hood can fit two large pillows, and the bag’s top is removable for conversion into a full-size comforter blanket.

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Knowing that every individual prefers a different level of warmth at night, Klymit made the collar, hood, and zipper adjustable on each side of the bag. A pad sleeve on the underside of the bag is also designed to retain two individual sleeping pads or one of Klymit’s Double V or Insulated Double V pads. This feature prevents the sleeping bag from sliding off the pad during the night.

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The new Klymit KSB Double sleeping bag weighs 4.7 pounds, packs down to 9″ by 18″, and is available at an MSRP of $400. For more info, go to Klymit.com.

For our thoughts on the single version of this KSB 30˚F system, read our review of that sleeping bag here.

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