Why is fibre a good at reducing heat loss in sleeping bag?

Fibres are naturally good insulators. They trap air within their tiny pockets, creating a layer of insulation that significantly reduces heat loss. This trapped air acts as a barrier, preventing body heat from escaping and keeping the sleeper warm.

Breathability:

Fibre fillings allow for better breathability compared to synthetic insulations. They don't trap moisture, allowing excess heat and humidity to escape. This moisture-wicking property helps maintain a comfortable and dry sleeping environment, preventing the buildup of sweat and condensation.

Loft and Compressibility:

Fibre fillings have excellent loft, meaning they can trap more air and provide better insulation. The higher the loft, the warmer the sleeping bag will be. Additionally, fibre fillings are highly compressible, allowing the sleeping bag to be packed down to a smaller size for convenient storage and transportation.

Natural and Sustainable:

Fibre fillings are obtained from natural sources, making them environmentally friendly and sustainable. They are biodegradable and don't contribute to plastic waste like synthetic insulations. Choosing a fibre-filled sleeping bag supports a greener and more responsible outdoor lifestyle.

Allergies and Skin Sensitivity:

Fibre fillings are generally hypoallergenic, making them suitable for individuals with allergies or sensitive skin. Unlike synthetic materials, fibres do not cause irritation, ensuring a comfortable night's sleep without the discomfort of allergies or skin reactions.

Durability:

Fibre fillings have excellent durability and can withstand regular use and washing. They maintain their insulating properties over time, ensuring long-lasting warmth and performance.