Classic Sleeping Bag

I use Western bags, and they're awesome, but wanted to go lighter, so I switched to a Zpacks bag for my cold weather bag. I found that Zpacks bags are truer to their temp ratings. I still use the Western HighLite for my warm weather bag, but now use the Zpacks Classic bag for cold weather. Their Classic 10 deg bag only weighs 20.5 oz and the Classic 20 deg bag only weighs 16.6 oz. I can't say enough about Zpacks: https://zpacks.com/collections/sleeping-bags

My experience with the EE quilts has not been so great. They require a lot of effort to redistribute the down to recover loft. If you are looking to get more than 50 nights or so, I'd probably look elsewhere. I actually really like my ZPacks classic sleeping bag that I converted to a quilt by adding snaps. It allows me to zip up the bottom completely on a cold night.

Thats a tiny pack for 3-5 day trips anywhere. I have gone down the ultralight rabbithole for a few years, and spent way too much money on changing out gear, and I can barely do 3-5 days in a 30-liter pack in Norway during summer. The Fjellreven pack is kinda light, but the Klattermusen one is as heavy as a framed 50 liter pack. Why did you settle on these options? Nashville Packs Cutaway, Pa'lante V2 w/Joey Straps, Lundhags Padje Ultralight all make more sense.

Thats fine, but why get a heavy pack when your goal is to go SuperUltraLight? To make it work with a 20 liter pack you would need to get a 7D quilt with super high fillpower, sleep on a ccf pad, sleep in most of your clothing etc. Its doable for sure, but its not easy. For starters; tarp from borah/zpacks/mld in dcf .55. Quilt/bag: join the lottery over at timmermadegear. Zpacks and EE also use 7d fabrics. Swedish Vilse makes 10D 900fp quilts in Sweden, im waiting for my +3 celsius from them. If you want to go inflatable; Nemo tensor elite. But it will be hard to make room for an inflatable in a 20l pack. Get a regular thermarest z-lite.

For the sleeping bag I’d recommend a zpacks, timmermade or cumulus 30f range sleeping bag you could push into much colder temps wearing alpha 120 bottoms, down jacket, and down foot booties inside the sleeping bag. I’ve used this combo of clothing to push my 12oz 50f sleeping quilt down to 20f comfortably. If you plan to camp mostly in the summer I’d get the 50f bag and just wear more clothes inside it to push temps lower in fall. I switched to this technique and was able to reduce my pack size a lot and half the weight of my sleeping bag and its bulk. It works well since I’m already taking the alpha pants and down jacket anyways so I might as well wear them and save weight on the sleeping bag. The wind makes the biggest difference to me for how much insulation I need at night. For High Wind below freezing a windproof bivy that can fit over your pad and quilt makes a huge difference to your overall warmth and stoping drafts. Many UL quilts with 7D fabric are not very windproof and even a 20f bag can feel very cold at 20f in high winds. I like to summit camp and it’s often very windy above 6000ft. For the sleeping pad I’d recommend the thermarest nxt https://cascadedesigns.com/products/neoair-xlite-nxt-sleeping-pad?srsltid=AfmBOop1YJvl8n8oPU1vCNvveJ5sopEYhuUIcb1ORgJmz5-Sc-vxRd-W If 6.1 and the wide thermarest fits me but is still small. It packs down very small and is the most comfortable and insulated pad for the weight that I’ve tried yet. I have slept at 10f in the snow and been fine with it. You can also pair it with a gossamer gear thin light foam pad and gain more R values for freezing temps.