I am looking to cut my sleeping bag weight in half for a mid-Sept. John Muir trail hike. I carry a BD Firstlight tent(would not give it up to save a limb) so I can go with a higher temp rated bag with light shell material. Right now I carry a 2lb mountainsmith vision which is very warm if not overkill in Sept. in a tent. Also, I move around ALOT in my sleep and toss and turn. I am 6’2″ and fairly broad shouldered. I current use a ridgerest but would like to upgrade to a torsolite or something similar. This would allow for a sleeping bag with no down in the bottom such as a sierra designs wicked fast. As far as layering, I am thinking a driclime and a baselayer will suffice. Or should I bring along my micro puff pullover?
any suggestions?

