Get out and see the brilliant fall colors, but guard yourself against the impending winter with the MontBell #3 Down Bag.
- Super Spiral Stretch System’s biased seams and elastic threads move with you throughout the night, keeping the bag close to your body to minimize open space and drafty air
- Polkatex DWR finish holds up to 100 washes and keeps dewy moisture from interrupting your slumber
- Inner flap around the head opening seals out the frosty early-morning air
- Bag zips to another bag to help conserve body heat in an emergency
- Auto-lock full zipper won’t unzip as you toss and turn overnight
- Available for shipping only to US and Canadian addresses
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Share your thoughts
Best sleeping bag ever
It's light, comfortable, warm and economical. What more can you ask for!
Gram Counter's Dream Bag
The Montbell U.L. Spiral Hugger #3 Down bag is extremely light weight, packs very small, and is very warm. When my new bag arrived, I couldn't wait to test it in the field so I took off for the Sespe Wilderness in the Los Padres National Forrest.
Since I sleep in a bivey, on top of an air matress, I had to vent the bottom of the bag to keep from sweating. I slept warm and comfortable all night.
The stretch feature is awesome. I was able to sit up with my legs crossed while inside of the bag. It was great putting on my socks while sitting inside of a warm bag.
I'm excited to have this bag as part of my backpacking gear, and I would recommend it to anyone.
Setup: So far have used only for 1 trip through the Shenandoah National park, about 6 days hiking the AT. Temps were down to the 30s at night 1 time, but usually 40s. I had a partner to my tent and used a half length pro-lite, as well as a thermal shirt w/ boxers. I'm 5'8" and have a regular length.
Comments: Bag was warm at the temps we experienced, but in the tent it was only about 50 at the coldest. I was very toasty though. The bag does make this ruffling sound when moved (the Pertex material) more than other bags I've had. That didn't bother me after 15 minutes. The materials are very comfortable. It's very spacious.
Cons: Like any 30' down bag, the bottom does compress when lying on it. So, I found that my half length pro-lite was not sufficient to be comfortable. I'd recommend a thicker/bigger pad than that, unless you're a solid sleeper going for ultra-minimal. I'd consider myself a more light-weight guy, and poor sleeper in the backcountry. I think this bag will work, I just need to carry one of my 1lb + pads.
Pros: zipper length (nearly full), ease of moving zipper, warmth, compressible, US company. Big inside.
Overall great bag
I bought this bag because I am so happy with my older style MontBell "U.L. Down Hugger" 15 degree bag. Same idea as the "Super Spiral", but without the "spiral". One thing I immediately noticed is that the bag does not contract as much as the "Down Hugger". Less "hug" equates to more cold air pockets. With that said, it's not a true mummy cut so it's an acceptable trade-off (to me) for the added room to stretch out. I'm thin and generally sleep a little cool which I was the 1st night when temps dropped into the upper 30's and the digestion heat wore off. Granted, I was only wearing a thin shirt, boxers, and without a fly on the tent. The next night was much more comfortable with the addition of pants and a fly. Since bag ratings assume you're wearing a baselayer, I'd have to say the bag is worthy of it's rating. Overall it's a very good bag, very light, packs down small and keeps you warm when dressed appropriately. If the bag "hugged" as much as my 15 degree bag (more/stronger elastic?), I'd be giving it a 5 star rating.
I love this bag it is so light weight and packable. The stretch design is amazing its like sleeping with a light sheet on. If you want to pull you feet up or turn or what ever you do it with ease. The temperature rating is good i had it on the AT and the temps dropped below 30 and i felt it but all i had to do was pull my feet up and i was good. The only gripe is the head hole is oval shape witch is taking a bit to get use to. This is a all a around great bag i would rec-amend it to any one. I would spend the extra money for the down because you would want this bag for the rest your life
Comfortable, warm, light, and packs small
I'm in my late 40s and don't backpack as much as I used to, but I still get my share of nights outdoors every year. I've had my UL SS Hugger #3 for 2 years and couldn't be happier with it. I've slept under a tarp on occasions in blowing snow and been toasty, and this spring in a Tarptent Moment (a little drafty) as we got some late winter snow in VA and water bottles froze while I slept comfortably. I've had the bag down to at least 25 F with a base layer and Neo Air mattress with no issues. And when I do backpack I carry an ultralight pack - 10-15 lbs for 2-4 days. This ounce-counting bag is critical to my ultralight system. In the Marine Corps we'd often say "travel light, freeze at night". You don't have to with this bag.
I'm a big guy 6'2" 260lbs. Has anyone big...
I'm a big guy 6'2" 260lbs. Has anyone big tried this bag out? I know it stretches but most backpackers are ave size.
I'm 5'10" 280lbs. This bag fits very well and then some. It does move & stretch< but leaves no empty spaces for cold air. You would need the long model for your height
Where to start?
I have now used this bag on several backpacking trips, in California's Eastern Sierra and in the local Southern California mountains. I have never been happier with a sleeping bag.
Very light, at 1lb 5oz (mont-bell's website says 1lb 5oz rather than the 1lb 4oz listed here). Weight is very important to me, and I do not mind giving up some amenities for it, but I think mont-bell struck the right balance with this one.
The bag is quite small rolled up (and extremely compressible if you want to put it in a compression sack, I do not, I just put it in an 8-liter Sea-To-Summit dry sack). It ends up being about the size of a football.
I have found it to be warm at least to its 30* rating, which is plenty for my endeavors and me. I do I wear my jacket and beanie when sleeping, but that's all part of my lightweight philosophy, of combining the use of items to reduce weight. I'd rather carry a lighter sleeping bag since I'm already carrying my jacket and beanie.
In addition, I cannot say enough about the Super Spiral system for sleeping comfort, it is just amazing, it makes me feel as if I am in a much bigger bag, but with no dead airspace to heat.
One more note: I got a stuff and a storage sack with mine, although BC's sidebar just says stuff sack.
All told, I highly recommend this bag if it meets your needs.
Just got my montbell home. Great sleepingbag compared to it´s weight. Went out and tried it for half an hour in -8C. It was a little cold but i could easily have sleept in it. Had my pants and a thin fleece jacket on me. It compresses really good and if i get a compressing bag, can I probably make it half the size. This bag will be used all summer
I recently used this bag for a 3 night hike. Temperatures were around 45-50 every night. I also supported my temp readings by checking with www.weather.com before and after my trip for the area I had hiked/slept. However, I was a little chilled when the temps hit about 45 (while i wore smartwool socks, polyester underwear, and polyester tshirt). I was using a big agnes insulated air core and my back/whatever was touching the mat was fine, however, my feet, parts of my legs, and parts of my arms were cold. I am a slightly cool sleeper but have never had a major issue with temp ratings. Normally i'm too warm by morning.
Other things to consider before i went to bed:
-I had a large, warm, spicy dinner.
-Did about 8 hours of hiking and climbing that day
-Was more than well hydrated
-Slept in a tent with other people and a rainfly
I liked the stretch baffling system a lot because it allows you to shift around as if in a normal bed. However, I looked up the specs on the MontBell website to find that there is 10oz of 800 fill goose down total in this bag. The bag does not contain a draft tube for the zipper (a small flap that covers it), and obviously no draft collar (most bags this temp rating don't have one). I looked on Marmot's website to find the specs of the Marmot hydrogen (30), and it uses 11oz of 850 fill down. Although only one oz more, it is higher quality down, resulting (in my opinion) quite a bit more insulation. Marmot also EN tests all their bags. I could not find anything about whether or not MB EN tests their bags or not. I've also looked on the Sierra designs website at the Nitro 30 and its fill with 12oz of 800 fill goose down! Same fill as MB but 2 more oz....thats an eighth of a pound more! My wife has the women's version of the Sierra Designs Nitro (the Spark 30). I climbed in it and there is a HUGE draft tube and zipper guard. the loft is twice the size of the MB ss3 and i was instantly sweating!
I regretfully returned my bag. I believe I will pay more close attention to not just the type of down used but also the fill weight of the bag. If two bags have the same fill, then more down=more insulation=more warmth. Common sense I'll never overlook again.
Warmth and more!
This bag is the best! I ordered it from backcountry mainly because of their return policy.Thank you backcountry! I used the bag on a 3 day trip to Holy Cross wilderness where nighttime temps dropped to around 25. I was so TOASTY in this bag. I am usually on the cold side when I sleep out. with this bag I was in shorts and a t-shirt and I still had to open the side zipper. Strange feeling for me, but I would say this bag will definitely go lower than the degree rating. I have the 800 fill bag and it packs down smaller than a nalgene for me in a compression sack. I can't say enough about the super spiral. You feel like you have so much room and like I said, its toasty.This bag is worth the money.
does anyone have any pictures or text about...
does anyone have any pictures or text about how much this bag compresses?
Stuff size is 5.7 x 10.7in, and that's just regular stuff sack, in a compression sack, you're probably looking at about the size of a softball.
Segment 3 of the Colorado Trail
Best bag for the buck.
I have always had problems staying warm in regular sleeping bags, then I found this one. This bag has elastic baffles that pull the bag closer to your body to help elimated dead air while still allowing you to move freely. This is a great light weight, 800fill down bag that is perfect for most 3 season camping. No problems with water dripping on an soaking through. If I had to choose the perfect bag this would be it.
One is better than 2!
Bought a L and R zip so that we can zip in to make a double if desired.
Super versatile, we avoided having to buy a winter bag...
So loving the weight on these- for colder temps, we bought a +25 degree sea to summit liner, and at an addt'l 14 oz, bring it on, winter!