Looking for some help everyone. Last year I bought a GoLite sleeping bag (mummy) that is super lightweight, high quality, and warm enough for what I'm looking to do.... (Temps ranging from 25-55 degrees). The only problem with the bag is that it is a Mummy bag, and I absolutely hate having my legs crammed together in a mummy bag. Now I am looking to replace that bag with something pretty much the exact same, but in a rectangle bag. I have had no luck finding anything that is Lightweight (backcountry packing), warm, and a rectangle bag. Looking to spend >$300 on something. Any ideas? Thanks