Our family is part of a small scout troop and we purchased most of our camping gear here on Amazon as our local store went out of business years ago. We camp every month except in August in various weather conditions. Our young kids pitch their tent in winter often on ice and snow. They use the folded up back packing foam mats for ground insulation but these bags comfortably get them though. I bought one for myself to test out on a November 2018 camping trip and was impressed that it worked as well as the one my son had which cost almost $200 more. I bought 3 more for the kids as Christmas gifts afterward. It's 2023 and we are still using those same bags.

Getting back in to BPing after 15+ years. Need equip upgrades. Disappointed to find sleeping bags have become so technical. My old 0 bags are Just off the Walmart shelf, $50 bags. And I know for sure they'll keep my warm at 0. They're just heavy and bulky.

After reading about comfort temp vs survival vs what the bags rated at. The worry that the down might move around leaving cold spots. Etc. I was worried I'd get a nice bag but it wouldn't be as good as my cheapy.

My objective rating of the snowmass 0 bag would be 4.5 stars. I've tested on my front porch, no tent but an r4.4 pad. A few tests between 0-3 degrees, for 30min + each time. With just the one pad the bag was plenty warm in t shirt and jammy pants. But there were cold spots at my pressure points, hips/shoulders. An additional foam pad and that's solved. I'm almost too warm.

I'd knock it a half star cause I originally got the regular size bag. I'm 6-1", 195#. It was too short and narrow. The long is much bigger in all dimensions.

Also it came in it's stuff sack wrapped in plastic. I'm guessing it's been sitting on the shelf that way. I gave it a day to loft up but there are spots that are still extra wrinkly where it was extra compressed. Took some extra work to spread the down and get it distributed better.

Glad I got it. Nice and warm down to 0. Id take it lower w confidence.

This bag is by far one of the warmest bags I've ever purchased for backpacking. It has a few drawbacks, but for a TRUE 0F bag it's spot on. Here's what I've done to test it so far. First, I took a backpacking trip in early March (Highs: 40F, Lows: 20F) around Greenleaf State Park in Braggs, OK. It's a 28 mile loop on some rough terrain. It was overcast the entire time, and a light mist seemed to be always falling. None the less, we pushed on and camped the first night within a stones throw of the lake. In hindsight, we should of pushed away from the lake a bit more due to the wind. Within an hour of sunset, the temperature plummeted. We had setup our tents and I had laid out my sleeping bag in my tent to allow it time to fluff up and expand. One thing to note: This bag REALLY puffs up once it's out of the compression sack. Crazy amounts of loft. OK - so after standing by the fire for a few hours the 12 mile day took it's toll and I fumbled off to my tent to try and get some sleep. Normally, I would be crawling into my Sea to Summit Spark II 35F bag, which only has a 1/4 zip (and is a huge pain to get into), and was pleasantly surprised to find that my bag had a full length zipper that would open from the top or bottom. I didn't realize how important this was until later. I crawled in and immediately found the texture of the fabric to be a bit tacky to the touch. I figured it was my cold skin, so I slid down into the bag. At first, it felt like sliding into an ice sickle. After about 30 seconds though, the bag started to warm up and the inner lining of the bag felt much better. Then, almost all of a sudden, I was WAY too hot. I don't mean just a little "let me open the top a little" kind of hot, I mean I almost started sweating within 3-4 minutes of getting into the bag. Holy cow! This is by far the warmest bag I've ever been in. Most of my other bags are 45F down to 35F with very little options to regulate heat other than sticking an arm out or unzipping from the top. Luckily, this bag had a foot zipper that I was able to unzip about 2-3 inches and that regulated the heat perfectly. The next two nights went the same way and I'm hooked.

The biggest issue I have is getting out of the bag on cold mornings. I just don't want to. Ha! A+ bag! Highly reccomend. It's a bit on the heavy side, but for the price you can't beat this bag anywhere.

I bought this long bag for my 6'3" 220 lbs husband who has wide shoulders (56" around). He fits it in comfortably.

To test it out I (5' 120lb) camped in it once in Yosemite in April for four nights, where temperature dropped to 42 F. Before used, we fluffed it up in dryer for 5 mins with no heat then packed it loosely in a larger bag, and fluffed it up by shaking it out and laid it out for more than an hour. I didn't trust it at first, so slept in it with a t-shirt, a thermal long sleeve T-shirt, a jacket. I got too hot and had to take off layers. The second night I didn't have the Jacket on, I was warm enough. The third night, it said the temperature would drop more, so I put on more layers, and got too hot again. It is the warmest sleeping bag I ever slept in. It was big for me but the extra room did not make me feel cold.

My husband camped in it for three nights where temperature ranged from 50 to 45 F. He had a shirt and pants on, and used it as a blanket and slept on a cot without a tent. He was warm in it. My guess is if in 32F (0 celcius) - 20 F (-10C) he would be warm enough if he zipped it up.

Material is like those down jacket material you see at Costco. If you could wear those jackets daily, I think it is study enough for the bag. I zipped the zipper with care, so far no complaint about the zipper.

update: We have used this bag in cold and windy situation (not sure what the actual temperature was, ~ 40 degree F) for quite a few more times. My husband does not like to zip it up, so when it was cold and windy, he slept with a light weight cotton jacket on a cot (not in a tent) and used the bag as blanket and just tugged the side under his body and feet in the bag and still feel comfortable.

two down sides: each time my husband got up, he was covered with down and the odor still presence even though we air dried it. These are the main two reasons that I hesitate to buy another one. If the manufacturer could replace the inner line material to a tighter knit material, maybe down would not come out and the bag would maintain its warming system for a longer period.

My only complaint is the bag smelled badly after the first night use and it didn't seem to totally go away after putting it in dryer in no heat setting as recommended by seller (seller was contacted after we discovered the issues). Would have received a 5-star review if it didn't smell bad or keep loosing the down filling.

update: the bag is warm, but the odor is present after each used, air dry or air dry in dryer only help if you don't use the bag, if the bag is used for one night, it stinks!! we continue to loose down filling each use. Very disappointed!!

Here's the package we bought below. We wanted to get lightweight, compressible gear (for backpacking in mountains for days), that's easy to set up, comfortable, and warm. Ever since we first tried this package out together, we were sold on it, and have used it ever since (January, February, March '21 backpackers this year). And I anticipate using it for a very long time going forward. We used this package on the Appalachian Trail and Rocky Mountains backpacking in single degree weather, and we were as warm being in our own house. No joke. We could not believe how warm and comfortable we were. It would even get hot at times (we had thermal top and bottoms on only) so we had to peek our head out a little to get some cool air. And comfort? So comfortable. We (my 15, 16, 19 yr old boys and I) are never going back to tent camping ever. This is too good. So easy too. No worries about wetness on the ground, rain hitting the tent, packing up a wet tent, sleeping on the hard ground (we even had super killer self-inflating camping pads are that are awesome, but it's still a degree of hardness because you're on DIRT!), mildew worries from tent moisture, etc. etc. The time it takes to set up and take down is incredible. Obviously, you need trees or some other structure to hook onto. But other than that, this is the way to go for us. Best of luck with finding your ideal set up. We found ours.

Hammock: ENO, Eagles Nest Outfitters DoubleNest Lightweight Camping Hammock, 1 to 2 Person
Underquilt: OneTigris Shield Cradle Double Hammock Underquilt, Hammock Camping Essentials (Winter)
Sleeping Bag: Hyke & Byke Snowmass 0 Degree F 650 Fill Power Hydrophobic Down Sleeping Bag with Clusterloft Base
Rain Fly: REDCAMP Waterproof Camping Tarp (82"x82")