Sleeping Bag Temperature Guide

Find the right temperature rating for your trip conditions

Recommended Rating

40+
20-40
0-20
<0

EN/ISO Rating Explained

RatingMeaning
ComfortTemp at which an average woman sleeps comfortably
Lower LimitTemp at which an average man sleeps comfortably
ExtremeSurvival only -- risk of hypothermia

Tip: Always buy a bag rated 10-15°F below your expected low temperature. Use a sleeping pad with R-value 3+ for 3-season, R5+ for winter.