Comfort Rating Sleeping Bag

Lower limit rating which is always lower than the comfort rating indicates the temperature at which a warm sleeper might still feel comfortable.
Comfort rating sleeping bag. But no standard for measuring ratings exists in the u s so there s no control for variables such as metabolism what you re wearing and sleeping pad type and thickness. 20 to 32 f cold weather winter sleeping bags. This rating indicates the lowest temperature in which the average person could be comfortable sleeping with the sleeping bag in question.
The iso update will serve as the new testing protocol for all sleeping bags moving forward. Comfort rating indicates the temperature at which a cold sleeper might feel comfortable. The en standard for sleeping bags is marked en13537 which was superseded by the iso 23537 1 international standard in 2016.
In addition to the weather there are a number of other factors to consider that will affect the temperature rating assigned to your sleeping bag. Our interpretation of this is the comfort temperature is a good guide for the coldest temperature a cold sleeper would want to plan to use their sleeping bag for. In april 2017 the new iso standard was introduced as an updated version of the en ratings.
Traditionally in the u s a sleeping bag s rating indicates the lowest temperature at which the sack will keep the average sleeper warm i e a 20 f bag should keep you comfortable down to 20 f. En and iso temperature rating systems explained. For instance sleeping in a tent or bivy sack will add about 10 degrees of warmth to the rating assigned to the bag.
The temperature rating is an important factor to consider when choosing a sleeping bag. All sleeping bags are now independently tested and provided with a comfort and limit rating. The amount of clothing you wear will also affect how warm you will be.
If the temperature reaches or falls below the lower limit the sleeping bag will start to feel very cold. 32 f and above 3 season sleeping bags. The rating you choose will depend on where you ll be using your sleeping bag and what temperature you are comfortable sleeping in.