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:
“My sleeping pill is white.
It is a splendid pearl;
it floats me out of myself,
my stung skin as alien
as a loose bolt of cloth.”
—Anne Sexton (1928–1974)
“What is this beast, she thought,
with muscles on his arms
like a bag of snakes?
What is this moss on his legs?
What prickly plant grows on his cheeks?
What is this voice as deep as a dog?”
—Anne Sexton (1928–1974)