Wake up the serene valley with your snoring when you sleep outside in the MontBell U.L. Super Spiral Hugger #5 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 chilly morning air
- Bags zip together to help conserve body heat in an emergency
- Auto lock full-zipper won’t unzip as you toss and turn overnight
- Left and right zipper bags available
- Available for shipping only to US and Canadian addresses
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Share your thoughts
There seems to be alot of rookies on this review page.
Your pad factors in, what layers u sleep in make a significant difference.
Do Your Homework.
Ive used this bag in the mid 30s - low 40s with a good pad and a base layer. I was fine.
The bag stretches so being Closter phobic is not an issue, for a Large or XL person this is a big deal.
This is a summer sleeping bag. This is not your GO2 bag in the spring, winter or fall. This is the bag you take on a backpacking trip in the summer, pinching for weight, and willing to sacrifice a little warmth for more movement in the bag. (You can damn well do anything in these spiral stretch technology bags ;) You can always layer correctly to make this bag warmer too.
Pros: Stuffs down to basically nothing, even with the standard sack. Very comfortable.
Cons: You'll be cold if it dips below 50, unless you're wearing long pants and a jacket.
The quality of this bag is top notch. Very little down has been lost coming through the material. A few pieces worked their way out when stuffing the bag into the stuff sack when new.
The lightweight material seems fragile but I have yet to put a tear in the fabric after two years of use.
The temperature rating of 40F seems to be quite reasonable. Most of my use with this bag has been from spring to fall camping on a Therm-a-Rest Deluxe. If it is too warm, it does have a two-way zipper so you can vent by your feet without your core getting cool. I have used it in air temperatures down to 25F with just a single light layer on (sleeping in a non-heated hut in spring time on a thin mattress). Normally, I would not push the temperature limit of the bag that far if I were camping outside on the ground.
At 16oz and packing down to the size of a 1L Nalgene I hardly notice this in my pack.
I had the chance to test this bag out, as a friend bought one. I found the quality to be consistent with that which I have come to expect from mont-bell: outstanding.
At one pound even for the regular, this bag is what it is, a super-light summer bag designed to handle moderate temperatures. It sounds as if some buyers thought it might be a bit more than that, but there are also so many factors that play into how warmly one sleeps.
I would not buy this bag, because I think it falls into a "no man's land" for me. For five ounces more, one can get the 30* mont-bell bag, and four of those five ounces are down fill, so it is weight well spent. If a 30* bag may be a tad warm for you on occasion, you can always vent with the zipper.
If you are set on serious weight savings and want a one pound bag, I would go with the Western Mountaineering HighLite, which is the same weight, with a 35* rating, and within a few dollars on price.
Both of those options seem to make more sense to me, but that is just my opinion.
The manufacturers' state that the ratings are assuming a person is wearing long underwear, socks and head covering. Now, I don't always sleep that way when hiking but I recently got a chance to test my Hugger#5 bag in the low 40's. I wore exactly what was recommended and I got chilly. The low for the night was 39 degrees. Around that time, I had to put on a light down jacket to stay warm. I just don't think they put enough down in the this bag. I think it should be rated as a 45 degree bag.
Just took this bag out for the first time and settled into it in about 35 degree weather. Realizing this was a 40 degree bag, not a more appropriate 30 degree bag, I was still expecting some level of warmth. I might as well been in a Coleman fleece summer sleeping bag because I froze my rear off all night. In addition to being also in a TiGoat UL bivy, which should provide another 5 degrees or so of warmth, I was wearing UL wool long johns, REI hiking pants, moisture wicking s/s shirt, level 3 capaline l/s shirt, Montbell UL down jacket, AND a Columbia lightweight nylon rain shell -- still cold! I'm not a frail or overly cold individual, so I have to wonder what's up?
Otherwise, the style and elasticity of the super spiral is great. I like the way it expands and moves with you. I may try to upgrade to the 30 degree bag..
If you really want a 40 degree bag- keep looking!I bought this bag for the Tahoe Rim Trail, July in the Sierras-no problem!The 15 day hike had the temps at 43-50f degrees. I have always been a warm sleeper-only shorts at night. I had to wear long pants with shorts underneath, long sleeve shirt,socks,fleece hat and gloves- and I was still cold!I really wanted to like this bag due to the 1lb. weight, but is not not even close to the 40 degree rating.I will go back to my Sierra Designs Nitro 30 which I will sweat in and has never let me down- and it is only seven ounces more.
what does the UL stand for?
98% Sure in the Montbell lexicon, that U.L. stands for UltraLight. I believe that it represents their lightest gear and clothing.
UL stands for ultralight. They have other sleeping bags with a little heavier denier fabric.
The UL stands for UltraLight, which mont-bell accomplishes by using an 800-fill down and a 12-denier ballistic airlight shell fabric versus 650-fill and a 40-denier shell fabric in the standard Super Spiral bags. The UL line also adds the Polkatex 100-wash DWR finish. I think it is worth the extra money to go with the UL.