Back country sleeping bags

[Dubious]

Back country back packing guys what are you using for light weight sleeping bags. I’ve been using a 15 year old down bag it works ok but just it’s weight and volume Are high. I’ve been thinking of something a little more modern and a lot more back pack friendly that packs up super small volume and dosnt weight a lot is rated for about 0°. I’ve down sized a lot of my gear over the last 3 seasons to the point where my sleeping bag now weighs more than my shelter. I rear good things about quilts vs down bags any input would be appreciated.