How to Optimise Insulation in the Cold

Staying warm at night is obviously vital to survival and to make sure you sleep well and are rested properly for the next day to optimise performance. The human body, even in cold conditions, can sweat over a litre of water, and so using a breathable bivi bag is the preferable option for most, this will prevent you from getting wet with sweat during the night and making you cold,damp and miserable.

However, sometimes it may be a wise idea to also use a sleeping bag inside your bivi bag for extra insulation, particularly in a bivi tent. Also consider putting down a sleeping mat to place your bivi bag on top of.

This will prevent alot of your vital body heat from being sucked away into the ground and also acts as a barrier to prevent any damage to your bivi bag from thorns and the like.

Not only will this enable you to keep alot of heat in but it will also make for a more comfortable nights sleep as the ground will be somewhat softer, preventing you from waking up with aches and pains in muscles you didn’t know you had.

So summing up, to stay warm get a breathable bivi bag and consider insulating yourself further with a sleeping bag and a ground mat.

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