As Tucas the cottage UL gear maker from Spain has quilts in Apex 133, 167 and 200. He quotes the following on temps:
“Temperature rating.
Rating a quilt is a bit complicated, as many factors are involved. However, the comfort temperatures that we assign to these quilts based on field testing are:
Insulation Rating
APEX 133 +5 C
APEX 167 0 C
APEX 200 -5 C”
see:
http://www.astucas.com/en/products/sestrals-quilt/
And for example Ripstop by the roll quotes the following:
“The ultimate temp rating of a quilt or apparel is subject to several variables, but as a rough guide, the following temperature ratings can be expected when using single-layers of Climashield® APEX insulation:
2.5 oz – 50o F
3.6 oz – 40o F
5.0 oz – 30o F
7.5 oz – 10o F”
See:
https://ripstopbytheroll.com/products/climashield-apex-5-oz-sq-yd
Hope that helps.
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