camping

Lower Limit

What is a lower limit?

A lower limit is the coldest temperature rating at which a sleeping bag is designed to keep an average woman comfortable during sleep. This rating is part of the EN (European Norm) or ISO temperature rating system used to standardize sleeping bag performance across manufacturers. The lower limit typically runs about 10-15°F warmer than the extreme limit rating, providing campers with a realistic expectation of the bag's warmth capabilities for planned camping conditions.

Related Terms

Temperature Rating

A temperature rating is a standardized measurement that indicates the lowest temperature at which a sleeping bag or outdoor gear item will keep a user warm and comfortable. For sleeping bags, it typically includes comfort rating (temperature at which an average woman sleeps comfortably), limit rating (temperature at which an average man sleeps comfortably), and extreme rating (survival temperature with risk of hypothermia). This rating system helps campers and backpackers select appropriate gear for expected weather conditions and ensures safety during overnight outdoor adventures.