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A tourist in a sleeping bag. A sleeping bag is an insulated covering for a person, essentially a lightweight quilt that can be closed with a zipper or similar means to form a tube, which functions as lightweight, portable bedding in situations where a person is sleeping outdoors (e.g. when camping, hiking, hill walking or climbing).
Medical students demonstrate the use of a portable hyperbaric bag. A portable hyperbaric bag, of which one brand is the Gamow (pronounced) bag, is an inflatable pressure bag large enough to accommodate a person. The patient can be placed inside the bag, which is then sealed and inflated with a foot pump.
To prepare the bed for sleeping, the cowboy laid it out with the tarp folded roughly in half at the middle, creating a near-square 6–7 ft. wide and 7–9 ft. long, and centered his bedding between the two long edges, with the top side of the tarp (2.5 to 3 ft. longer than the bottom, so it could be pulled completely over his head if desired ...
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An inflatable building is a structure constructed using two layers of membrane connected together, typically using spars made from the same material. The cavity formed between the layers is pressurized with air producing a rigid structural element which allows large span structures to be achieved.
A sleeping pads's warmth is characterized by R-value. But unlike sleeping bags' EN 13537 test standard and widely accepted recommendations, sleeping pad R-values lacks a simple mapping and label for 'how much warmth' a consumer should expect. Combining various standards and various authors' research, an approximate R-value to temperature chart ...