Big Agnes

Lost Ranger 3N1

Big Agnes Lost Ranger 3N1

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Overall

#66 in

Outdoor Sleeping Bags

according to Reddit Icon Reddit

Sentiment score71% positive
5
2
0
Last updated: Jun 9, 2026

Reddit Reviews

Reddit Iconmayhem_and_havoc
8 months ago

Big Agnes Lost Ranger 0F Sleeping Bag and Pad. I can adjust accordingly with this bag because its two bags in one really. You specified camping and this is a great camping bag. I got it cheap a couple of springs ago. I like it.

7 months ago

Baselayers!!! Midlayers!! Outerlayer! Wool socks. Baselayer as a Dry suit for sleeping Thermal Sleeping pad. Big Agnes Lost Ranger 0F Sleeping Bag $$ you are going to spend some cash money. It's like crack.

Reddit IconCurrent_Ad_7769
12 months ago

As mentioned by others, rather than getting those heavy square bags you could opt for a down quilt. By the way you should make sure that you are actually a warm sleeper also out in the tent. I am a warm sleeper at home but when I an camping I am still getting the chills every now and then even if the comfort rating of my sleeping system is on point. The thing is that humidity and wind play a huge role on how the heat is sucked away from your body. By the way, even if bags are ISO rated, every company has its own standards (by the way even industrial production has certain variations in build quality and material). So, rather than trying to pinpoint the exact temperature your are going to sleep at that night, you could be better off playing it conservatively and go for something like a 0C bag with vents and double way zippers so that you can adjust your temperature.

12 months ago

Yes quilts are very popular nowadays. Right now I am using a hybrid setup, check out Big Agnes’s Lost Ranger lineup. It is made of one quilt-like piece and a mummy bag too, so that you can use the three setups: only quilt for 10C, only mummy (designed specifically for those who toss and turn a lot) for 0C and the two together for -11C. I love it!

Reddit IconInternConnect6963
9 months ago

Kelly cosmic down bags are amazing bang for buck. REI has generous return policies as well, so if you get into a bag you don’t like, you have the option to return it for a year. More expensive bags/huge discounts don’t necessarily mean they are going to fit your needs. I currently sleep in the Big Agnes Lost Ranger, which is a 3in1 sleep setup. It is a quilt and a sleeping bag, which means you can sleep with just the quilt, just the bag, or if it’s cold enough you can nest the sleeping bag inside the quilt. It’s on the more expensive side, but it could be beneficial looking into a similar setup. I would however recommend investing in a nice sleeping pad that has a decent R value. I currently sleep on the Big Agnes Rapide SL Insulated (regular) and I LOVE IT. it comes in all different types of widths and lengths. I’ve slept on it for 2+ weeks in the Yosemite side country and I’ve never had a single issue with it. long story short, i’m a huge fan of the Kelty Cosmic Down line. there are also a few REI branded bags that may be worth looking at.

Reddit IconJohnnyMacGoesSkiing
7 months ago

For cheap, no. https://preview.redd.it/crlfe5zr9u1g1.jpeg?width=447&format=pjpg&auto=webp&s=528fa1c294cba5226b5f77d7a984a5ee5ee7ce1b Though, a system bag like the [Big Agnes Lost Ranger 3n1 0](https://www.rei.com/product/245987/big-agnes-lost-ranger-3n1-0-sleeping-bag) will get you awful close if you add the [Outdoor Research Helium Bivy](https://www.rei.com/product/203558/outdoor-research-helium-bivy). This is what I use. You could also build a similar system that is a bit safer from a 40 degree top quilt like the [Enlightened Equipment Revelation Apex Regular-Wide](https://enlightenedequipment.com/revelation-apex/) and any 20 degree Down mummy bag like [Mammut Comfort Down 23](https://www.rei.com/product/247720/mammut-comfort-down-23-5c-sleeping-bag)

7 months ago

Well in the Big Agnes system, the quilt is mostly for warmer weather, where that is less of an issue. Also, what isn’t obvious from quilts is that they actually deal with tossing better than folks expect. The key is that to “Collar” is oversized like a big draft collar on a traditional sleeping bag. Quilts like the Zen Bivy, and the above bag completely negate the issue of drafts coming in the side by by zipping or climbing the sides down. This makes means drafts can only come in the top. Cinch them up before bed and don’t worry. I bought the old UL version back when they offered a 800 fill power version. Kept the whole system below 3lbs. Dicks sporting goods still has 2 in stock [here for $470](https://www.dickssportinggoods.com/p/big-agnes-lost-ranger-ul-3n1-0-sleeping-bag-23tumalstrngrl3n1csl/23tumalstrngrl3n1csl)

Reddit IconMaraudinggopher77
9 months ago

I'm in central Idaho. I use the Big Agnes Ranger 3-1 15 Degree bag for my elk season that runs late October into November. The double bag combo works well for keeping warm into the 10-20 degree overnight temps. I pair it with an inflatable pad with an R value of 4. A good warm pad makes the biggest difference for me. I'm not sure how you are, but if I don't get good sleep, my motivation tanks, especially as I get into the later days of my hunt. If you're not taking a hot tent you should get a bag that will keep you comfortable in freezing conditions.

Reddit IconQuiickLime
2 months ago

I think going all in like this is a bit much personally, but I do have a zenbivy sheet and quilt, and I found that for the specs etc. the value wasn't awful when I purchased, at least for backpacking equipment factoring in weight etc. For moto camping alone, it's a bit overkill. Breaking it down a bit: I think the pillow looks a bit overpriced, but if it's super good maybe not awful. The mattress also looks a bit overpriced to me - compared to a similar Nemo or Big Agnes. The dry sack is overpriced IMO, and not really necessary unless you don't have waterproof luggage. I just pack my quilt in wherever it'll fit to take up all the extra space. The quilt itself I think is pretty solid, 10° is pretty cold but maybe makes sense depending on where you're located, and the integration with the sheet is super nice IMO. The Big Agnes lone/lost ranger are competitive options that are priced generally similarly for context.

2 months ago

I think going all in like this is a bit much personally, but I do have a zenbivy sheet and quilt, and I found that for the specs etc. the value wasn't awful when I purchased, at least for backpacking equipment factoring in weight etc. For moto camping alone, it's a bit overkill. Breaking it down a bit: I think the pillow looks a bit overpriced, but if it's super good maybe not awful. The mattress also looks a bit overpriced to me - compared to a similar Nemo or Big Agnes. The dry sack is overpriced IMO, and not really necessary unless you don't have waterproof luggage. I just pack my quilt in wherever it'll fit to take up all the extra space. The quilt itself I think is pretty solid, 10° is pretty cold but maybe makes sense depending on where you're located, and the integration with the sheet is super nice IMO. The Big Agnes lone/lost ranger are competitive options that are priced generally similarly for context.

Reddit IconUser_4848
4 months ago

I have a Big Agnes Lone Ranger 3 in 1 sleep system and have used it in British Columbia over summer/fall hiking and took it to Mt. Kili this past December and was warm every night up there. Loving it so far, and both the bag and quilt compress down well for packing. Whatever you go with, best of luck on the trek to Kili!! It was amazing

Reddit Iconbazpoint
4 months ago

I have a Big Agnes lost ranger UL which is a 2 part system, one of which is like you describe, the other a regular bag, or you combine both for maximum insulation

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