My three recommendations:
- Sea to Summit Spark SpII/SpIII (long versions)
- Western Mountaineering UltraLite
- Mont-Bell Down Hugger 800 #3
Another down option with a bit more room for comfort is the Big Agnes Lost Dog 15 (Long) which is fluffier than pure ultralights, compresses fairly well and hits that 3-season range without feeling like a coffin too!
[9 Best Sleeping Bags in 2025 for Camping and Backpacking](https://alaskanarrows.com/best-sleeping-bags-for-camping-and-backpacking/) for other options as well
Hope this helps
I have used both a WM Ultralite and a WM Astralite for the Norwegian mountains in the summer. I sleep a little cold so think most would do fine with a quilt. You can expect the temperatures to get down to freezing in the night at higher elevations some nights. The 300 gram difference between the two options has made me choose the lighter quilt lately.
It’s always possible to bring a warm water bottle when expecting colder nights. I use a 700 ml sirup bottle (44 grams) I can fill up if needed.
If I were to buy a quilt for the Norwegian mountains now I think I would have had look at a Katabatic Palisade or Alsec.
I'm a 5'9" male and fluctuate between 155-160lbs. I've owned the Megalite and still own the Ultralite. The Megalite is the same dimensions as the Alpinlite. At your stated size, I would definitely recommend the larger size of the Alpinlite. I think you'll appreciate the extra room. I always recommend the over stuff. It really helps to firm everything up so that there is less down shifting, which helps to eliminate cold spots.
My western mountaineering ultralite bag. My first one lasted 15 years, a season with the forest service, thousands of miles of backpacking, and countless river trips.
I sleep rather cold. I could never make a quilt work for me I says wanted the sleeping bag hood and no air drafts.
So it’s the Xtherm and western mountaineering versalite 10 degree F or ultra lite 20 degree F bag for me in almost any US mountain west situation when I’m alone. I think western mountaineering is king sleeping bag maker in the USA. You Could look for used or sales on the Bags because I think they’re more than $500.
When I hike with my wife I do a 10 degree accomplice double quilt from Enlightened equipment. I do find the other body heat helps. We tried a ff spoonbill which has a hood but it didn’t work as well as the quilt with two. So I have to be mindful of drafts.
As others said eat something before bed, pee, and eat something else at night if you wake up cold and pee if you need to. Also there’s some argument to be had for naked sleeping in a sleeping bag that’s warm enough vs wearing puffies to sleep in. I personally always wear down pants and jacket to sleep if it’s cold.
Also campsite selection can contribute to cold.
Top Outdoor Sleeping Bags on Reddit
1
NEMO
Disco 15 Series
79% positive of 114 users
Spacious for side sleepers; bulky, temp rating optimistic.
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