Pads like the Thermarest and Exped are rated in R-value. That makes a good way to compare different pads. But it seems that Underquilts are always rated with a temp rating - a good way to compare quilt to quilt.
But - how does one compare pads to quilts?
What rating would an R-value of 2, or 3, in a pad compare to the temp rating of a quilt?
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