Originally Posted by
MuddyWaters
There is a lot more Loft in the feet and chest area of a bag than there is in your average quilt.
And, with continuous baffles like in the western mountaineering you can shift down to the top of you adding more insulation on top.... Higher Loft... When needed. Cuz you really don't need anything under you.
Also , your bag is differential cut and have the trapezoidal foot box, so your elbows and toes do not Poke thru down causing cold spots. The absolute worse is the sewn flat foot box of some quilts. Thank God EE wised up and change theirs, it was a POS.
The simple answer no a quilt IS NOT as warm as a bag of similar reported Loft, and that's before we even get into the issues of drafts.
Now go look at katabatic quilts. Draft collar, trapezoidal foot box, differential cut.
That's why they're the premium quilt. More should strive for that quality.