Mountain Hardwear Wraith SL
This bag is the most comfortable sleeping bag I have ever slept in. Warm, soft, it is a dream. It used to be mine. My wife tried this bag, and now won't sleep in anything else when we are camping even if it's warm. She just unzips the bag if it is warm. It has a wider cut, and it is roomy enough to where to don't have that claustrophobic feeling. Expensive, but well worth it for winter camping. Don't let your wife try it, or else buy two.