Western Mountaineering - Bison GWS Expedition

I got the Bison. Did well on Denali at -35C. Good quality that has been fine for 100 nights. Of course, regardless of sleeping bag, you need a good ground pad(s) or else you lose all of the heat to the snow/ice underneath you.

Hello. I went with the Western mountaineering Bison, the decision was "helped" a lot because I could buy it for whole sale price, still very close to 1 thousand euro though. If not I would have also looked very close at the RAB. But I think the WM bison is very rugged, and warm, it also has good room in it, not too much but still good for moving around. I just had it out for 3 nights here in Norway, and it worked really well. Although water/ice scares me a little because it can build up quite quickly (If you make the same stupid mistake as me and take semi-wet clothes into the sleeping bag without thinking about it...). It managed -30 C in Norway really well, I was too warm to start :) But for my next trip - 14 days to Greenland I will take a synthetic overbag, some kind of Carinthia maybe. And I would probably also try a VBL just for fun :) You will be happy with it. And I'm confident about sleeping with a dog in the tent with that sleeping bag. I also slept with someone who had the Pajak, and the outer shell is just sooo thin, I would not like that, it seems very vulnerable, and the little extra weight vs extra security in the bag not opening up, don't matter when you have it on a pulka. Hope it was helpful

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I've spend a lot of nights in the temperature ranges you're talking about and have used / owned a few of the bags you've listed. In my opinion, Western mountaineering is hands down the king of bags. The fit and quality is amazing. Their draft tubes along the zipper and around the neck are the best I've ever used. I have a couple of their bags including the bison and have been really happy. If you're a cold sleeper, Western mountaineering also has an over stuff option where they'll add extra down to a bag. Of course, the best bag in the world is useless without a quality sleeping pad. I really like the exped down mats, but there are a lot of good options out there.

I’m always going to rec WM. Great build quality with good use of elastic

Western Mountaineering is the benchmark. Their bags really are great. In addition to WM, I also own a Gryphon Gear quilt and can say that their quality is top notch as well and they make both bags and quilts. For a few hundred less than a WM bag, you can get a Gryphon Gear Taurus bag. They are a small cottage shop so you get to deal directly with the owner and he'll make it custom to your liking if you want it a little more roomy. I think there are so many better choices than the EE quilts.

Western Mountaineering is great. Also check out Feathered Friends.

I own two sleeping bags: one from Western Mountaineering (superb quality, but very expensive) and one from Cumulus (high quality at a fairly reasonable price). After a lot of comparison, I personally think both brands provide reliable comfort temperature ratings and are absolutely worth the money. Just remember: if you're physically worn out, the lower limit of the comfort range might not be enough-so it's smart to give yourself a little warmth buffer.

Good suggestion! I love my western mountaineering. But Radiant 20 is legit for under $200.

I liked my quilt when I was doing shorter trips. Once I started doing months at a time I grabbed a western mountaineering bag and I have no regrets. Helps me extend a bit more into shoulder season

Western mountaineering, awesome bags and uber lightweight.

Partner Stove and Western Mountaineering sleeping bag.

The weakest link spoils the fun. Sleeping back: -5 degrees in winter, ignore the rating just get a Western Mountaineering bag for all but summer, in that rating. Bottom layer for ground: closed cell foam like RidgeRest, I don't like air matressesl they take work Old sleeping bag on top of that foam pad. Another sleeping bag or blanket over you. I can't stay confined inside a mummy bag but I need one for warmth so I keep the zipper open on top so I can turn and the blanket/sleeping bag on top. It's all fun with advice at home, but bring more than you need and experiment what works for you. I was more cold and shaking in 20 degrees (rectangular bag, foam pad, little else) than I was later on in -10 degrees with the right gear and "layers" described above. https://preview.redd.it/ceia9yeziire1.png?width=1569&format=png&auto=webp&s=4dcb31bd3abce5073f985278d6ac184f36e8a144

I buy Western Mountaineering lol!

Our go to is Western Mountaineering bags. They have specific tailored bags for mountaineering.