Ok....what is your favorite bag you don't have to worry about carrying? Mine is that -35 or -40 monster XXL canvas rectangular one you get at Bass Pro or Sportsmans warehouse. They are dirt cheap at ~$150. In the summer I sleep in top of it with a lightweight bag or quilt and it's like a friggin feather bed in the outdoors. In the fall or winter I snuggle up in it. Never been cold in it once.