[Enhanced Warmth for Extreme Cold]Upgraded from the previous R1.8 to R3.0, Naturehike camping sleeping pad delivers significant improvements in both thermal insulation and moisture resistance. Designed with a high R-value of 3.0, it performs reliably in extreme cold conditions as low as -5degree(s)C and below. Suitable not only for cool weather from autumn to spring but also ideal for winter camping in sub-zero temperatures.