Sleeping bag liners are lightweight cloth sacks usually fitted inside sleeping bags to provide extra comfort, insulation, and help keep the sleeping bag clean.[1][2]
A thin liner may feel softer against the sleeper's skin, add 5 °F warmth to the bag (not pad), and be easily washed after use (unlike the thicker sleeping bag). A thick, fleece-like liner can increase warmth by 10-15 °F. Liners also allow a sleeper to use the liner alone, without the bag in hot conditions.[3] Optionally, bug-repellents, pockets, and a pillow holder can be added to liners.
A vapor barrier liner (VBL) is special type of liner that blocks the sleeper's moisture from reaching the bag, thus stopping evaporative heat loss. Usually a sleeping bag liner is used inside a VBL.
Sleeping bag liners are issued as basic kit by various militaries including the US and British armed forces.[4]
Fabrics
editLiners are made of silk, cotton, nylon and polyester among others;
- Silk liners
- light, soft and strong and retain much thermal insulation even when wet
- Cotton
- heavier and bulkier than silk and absorbs water
- Synthetic [mix]
- usually light, strong, and do not absorb water
See also
edit- Bivouac sack – a small, lightweight, waterproof alternative to larger tent-like shelters
- Mosquito net – a type of meshed curtain that is draped over a sleeping area, to offer protection against bites and stings from pest insects, and thus against the diseases they may carry
References
edit
- ^ Dodd, Liz (April 22, 2019). "7 best sleeping bag liners to keep you warm under the stars". www.independent.co.uk. Retrieved August 10, 2019.
- ^ "Sleeping bags and mats". www.dofe.org. The Duke of Edinburgh's Award. Retrieved August 10, 2019.
- ^ "How to Choose Sleeping Bag Liners". www.rei.com. Recreational Equipment, Inc. Retrieved August 10, 2019.
- ^ "Clothing for Operations 'The Black Bag'" (PDF). Ministry of Defence. Archived from the original (PDF) on September 15, 2017.
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