Sleeping bag

Sleeping bag is a lightweight, portable bedding item typically used by individuals who are engaged in outdoor activities such as camping, hiking, or mountaineering. It is designed to provide warmth and thermal insulation through its synthetic or down insulation. The bottom surface also provides some cushioning, but a sleeping pad or camp cot is usually used in addition for that purpose.

Design and Features

Sleeping bags are typically tapered at the bottom to reduce the amount of air that needs to be warmed. They are often rated in terms of their "temperature rating" or "comfort rating". This refers to the lowest temperature at which the bag will keep the average sleeper warm. There are three types of sleeping bags based on their shape: rectangular, mummy and semi-rectangular.

Types of Insulation

There are two main types of insulation used in sleeping bags: synthetic and down. Synthetic insulation is made from polyester and is less expensive, quick-drying, and insulates even when wet. Down insulation is made from the fluffy undercoating of ducks or geese and is more expensive, but offers a better warmth-to-weight ratio and is more compressible for packing.

Care and Maintenance

Sleeping bags should be stored uncompressed in a dry, cool place and should be cleaned according to the manufacturer's instructions. Most sleeping bags are machine washable, but some require professional cleaning. It's also important to repair any tears or holes as soon as possible to prevent insulation from escaping.

See Also

• Camping
• Hiking
• Mountaineering
• Outdoor recreation

References

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