>>607248VERY IMPORTANT ! DONT TRUST THE RATINGS!!
why ? because most ratings are scaled like this...
>EN13537 requires a thermal manikin test which produces four temperature results — upper limit, comfort, lower limit and extreme. These temperatures were worked for normal consumers.>The standard measures four temperature ratings:>Upper Limit — the temperature at which a standard man can sleep without excessive perspiration. It is established with the hood and zippers open and with the arms outside of the bag.>Comfort — the temperature at which a standard woman can expect to sleep comfortably in a relaxed position.>Lower Limit — the temperature at which a standard man can sleep for eight hours in a curled position without waking.>Extreme — the minimum temperature at which a standard woman can remain for six hours without risk of death from hypothermia (though frostbite is still possible).For the purpose of these measurements, a "standard man" is assumed to be 25 years old, with a height of 1.73 m and a weight of 73 kg; a "standard woman" is assumed to be 25 years old, with a height of 1.60 m and a weight of 60 kg.
So when a bag says "comfort 15°C limit 10°C and extreme 3°C"
its only good for Comfort rating. Of course you can change that with long underwear and a hat and other stuff like that. but might not be as comfortable or viable.
in my experience women are more happy with 5°C more or like muh gf pack herself in a jumper and sweat pants, so she can go piss next to the tent 3 times a night without being to cold.
