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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).
Therm-a-Rest is an American outdoor product company specializing in camping mattresses, sleeping bags, camp chairs, cots, and pillows.Therm-a-Rest began as a line of self-inflating camping mattresses, invented in the early-1970s by two former Boeing engineers and avid backpackers.
Valerie Hunter Gordon was the granddaughter of domestic electrical pioneer Gertrude de Ferranti and inventor Sebastian Ziani de Ferranti, the founder of British electrical engineering firm Ferranti, great-great-granddaughter of Italian classical guitarist and composer Marco Aurelio Zani de Ferranti and the sister of Basil de Ferranti.
The dimensions of the pad are usually about the same length as a sleeping bag and a little wider. Slight variations in design can be found, such as rippling in the foam, but these do not significantly affect the pad's thermal properties. A common misconception is that the pads are primarily for creating a more comfortable sleeping or sitting area.
The cowboy bedroll was an American Old West precursor to the modern sleeping bag, which carried a man's bed and some personal belongings in a waterproof shell. In Australia, it is called a swag . A "swagman" from Australia carrying a variation of the cowboy bedroll, called a " swag ", ca. 1901
Memory foam was initially too expensive for widespread use, but became cheaper. Its most common domestic uses are mattresses, pillows, shoes, and blankets. It has medical uses, such as wheelchair seat cushions, hospital bed pillows and padding for people suffering long-term pain or postural problems.
The sleeping car did not become commercially practical until 1857 when George Pullman invented the Pullman sleeping car. [82] 1839 Vulcanized rubber. Vulcanization refers to a specific curing process of rubber involving heat and the addition of sulfur or other equivalent curatives. It is a chemical process in which polymer molecules are linked ...
Mary Beatrice Davidson Kenner (May 17, 1912 – January 13, 2006) was an American inventor most noted for her development of the adjustable sanitary belt. [1] Kenner received five patents, which includes a carrier attachment for invalid walker and bathroom tissue dispenser.
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