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Understanding warmth

Perception of “Comfort Temperature”
The perception of comfort is different from person to person. It will also vary from day to day based on your physical fitness, mental condition, what you have eaten and when, how you have organized your bivouac, humidity and even the altitude you are at. It is also a fact that the lower the outside temperature the more clothes you wear in your sleeping bag.

At Nanok we base our Comfort Temperature rating on a male, 18- 24 years, with an expectation to sleep 6-8 hours without waking up because of being cold. All our bags are tested according to EN 13537 and ISO TR 11079. The temperature settings are based on lab. tests, field tests and our years of Norwegian outdoor experience.

How to interpret “Nanok Functional Temperature”:
• In the temperature range of +15 C to -5 C it is expected that you will wear short underwear and a T-shirt in your sleeping bag.
• In the temperature range from -5 C to -20 C you are expected to wear a thin “1st layer” that is normally a set of thin, long woollen underwear.
• When it is colder than -20 C you will normally use a thin 1st layer and in addition a 2nd layer on your upper body.
• Women should add 4-5 C to the comfort temperature in outside temperatures down to -15 C.
• Women should add 8-10 C to the comfort temperature in outside temperatures below -20 C.
• Those older than 30-35 years you should add 5 C to the comfort temperature.
• If you are going to altitudes above 3.300m you should add 5-10 C to the comfort temperature.

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