A sleeping bag is a protective "bag" for a person to sleep in, essentially a blanket that can be closed with a zipper or similar means, and functions as a bed in situations where a bed is unavailable (e.g. when camping, hiking, hill walking or climbing). Its primary purpose is to provide warmth and thermal insulation. It also protects, to some extent, against wind chill, precipitation, and exposure to view, but a tent performs those functions better. The bottom surface also provides some cushioning, but a sleeping pad is usually used in addition for that purpose. A bivouac sack (bivy) is a waterproof cover for a sleeping bag that may be used in place of a tent for lightweight travelers or as a backup if inclement weather occurs.
Read more about Sleeping Bag: History, Design Types, Fill, Temperature Ratings, Indoor Sleeping Bags, Infant Use
Famous quotes containing the words sleeping and/or bag:
“We do not weary of eating and sleeping every day, for hunger and sleepiness recur. Without that we should weary of them. So, without the hunger for spiritual things, we weary of them. Hunger after righteousness—the eighth beatitude.”
—Blaise Pascal (1623–1662)
“I see every thing I paint in this world, but everybody does not see alike. To the eyes of a miser a guinea is more beautiful than the sun, and a bag worn with the use of money has more beautiful proportions than a vine filled with grapes.”
—William Blake (1757–1827)