This is what I don't understand about quilts, where is the weight savings? I only ask because from what few quilts I have found they all weigh more than my Western Mountaineering sleeping bags and my sleeping bag has a hood and the quilts don't. I understand wanting more room than a sleeping bag but other than that is there any advantage? Are there actual quilts lighter than what I list below?

All 6' models and weighed in ounces. The Highlite only has a 1/2 zip.

Caribou 35 20.5 Megalite 30 24.5 Alpenlite 20 31.1 Highlite 40 17.0