Sleeping Bag Temperature Rating
Find the right sleeping bag temperature rating for your trip conditions.
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Sleeping Bag Temperature Rating Calculator
Don't freeze at camp! Calculate the right sleeping bag temperature rating based on expected nighttime temperature, your sleep type, and pad insulation. Get personalized comfort, limit, and extreme ratings.
Frequently Asked Questions
What's the difference between comfort and limit ratings?
Comfort rating is the temperature at which a cold sleeper will sleep comfortably. Limit rating is where a warm sleeper might feel cold. Always choose the comfort rating for a good night's sleep.
How does a sleeping pad affect warmth?
Your body compresses the sleeping bag underneath you, losing heat to the ground. A pad with R-value 4+ adds significant insulation. In winter, use R-5 to R-8 pads.
Down vs. synthetic sleeping bag — which is better?
Down bags are lighter, more compressible, and last longer, but lose insulation when wet. Synthetic bags are heavier but retain warmth when damp and dry faster. For wet climates, synthetic is safer; for cold, dry conditions, down is superior.