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:
“I heard the hissing rustle of the liquid and sands as directed to
me whispering to congratulate me,
For the one I love most lay sleeping by me under the same cover in the cool night,
In the stillness in the autumn moonbeams his face was inclined
toward me,
And his arm lay lightly around my breast—and that night I
was happy.”
—Walt Whitman (1819–1892)
“I thought all girls the same, but yes,
You bag real birds, though they’re from alien covers.”
—Philip Larkin (1922–1986)