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Sleeping bag: Difference between revisions
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A basic sleeping bag is simply a square [[blanket]], fitted with a [[zipper]] on two sides allowing it to be folded in half and secured in this position. A sleeping bag of this type is packed by being folded in half or thirds, rolled up, and bound with [[strap]]s or cords. The basic design works well for most camping needs but is inadequate under more demanding circumstances. | A basic sleeping bag is simply a square [[blanket]], fitted with a [[zipper]] on two sides allowing it to be folded in half and secured in this position. A sleeping bag of this type is packed by being folded in half or thirds, rolled up, and bound with [[strap]]s or cords. The basic design works well for most camping needs but is inadequate under more demanding circumstances. | ||
The second major type of sleeping bag, sometimes called a '''[[mummy]] bag''' because of its shape, is different in a number of important ways. | The second major type of sleeping bag, sometimes called a '''[[mummy]] bag''' because of its shape, is different in a number of important ways. | ||
* It tapers from the head end to the foot end, reducing its | * It tapers from the head end to the foot end, reducing its volume and [[surface area]], and improving its overall heat retention properties. Some bags are designed specially to accommodate women's body shapes. | ||
* It usually does not unzip all the way to the feet. The zipper is a weak point in any sleeping bag's insulating qualities. Together with the tapered shape, this design feature helps protect the [[foot|feet]], which are more vulnerable to heat loss than other parts of the body. | * It usually does not unzip all the way to the feet. The zipper is a weak point in any sleeping bag's insulating qualities. Together with the tapered shape, this design feature helps protect the [[foot|feet]], which are more vulnerable to heat loss than other parts of the body. | ||
* It usually has a drawstring at the head end, to help prevent the escape of warm air. | * It usually has a drawstring at the head end, to help prevent the escape of warm air. | ||
