I just recently switched to a quilt (Enlightened Equipment Enigma, 10 deg.) from a sleeping bag. I'd had a decent sleeping bag before, but the quilt is just absolutely fantastic so far. It's incredibly light, packs incredibly compactly, and is very, very warm. I use it with an (old) NeoAir sleeping pad (that has a hole I can't find & deflates completely overnight, so I wake up on the ground).