MontBell U.L. Super Spiral Down Hugger #5

3 reviews
5-star:   2
4-star:   1
3-star:   0
2-star:   0
1-star:   0


regular long
Weight 1 lb 0 oz / 450 g 1 lb 2 oz / 510 g
Fill weight 6 oz / 200 g 6.6 oz / 190 g
Temperature rating 40 F / 4.4 C 40 F / 4.4 C
Fill 800 fill-power down 800 fill-power down
Shape mummy mummy
Max user height 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm
Shoulder girth 53 - 75 in / 130 - 190 cm 57 - 81 in / 140 - 210 cm
Knee girth 44 - 62 in / 110 - 160 cm 47 - 67 in / 120 - 170 cm
Price $244.00 USD $264.00 USD



Lightweight, but comfortable down bag that packs down…

Rating: rated 4 of 5 stars
Source: bought it new
Price Paid: $160 on sale


Lightweight, but comfortable down bag that packs down small.


  • Down filled, very light in my pack


  • Down could be a problem if it gets wet

My husband and I bought these bags 3 years ago and have taken them on backcountry trips due to their comfort and weight. Although they are rated at 40 degrees, I have slept in mine when it was 31 degrees and did not get cold. My husband is larger and taller though and says that he does get cold sometimes because there is less "dead air space" when he is zipped up inside. I am short enough that I can put my little inflatable down pillow in the bag and I am not chasing it all night as it stays in the hood. He can't say the same. I am 5'4" and he is 5'11".

We do wash them and put them in the dryer with tennis balls to keep them puffy after a trip. So far no problems with construction. They are well-made and they do "hug" you all night due to the spiral design of the bag.


Love this bag. Quality construction, no cold spots,…

Rating: rated 5 of 5 stars
Source: received it as a personal gift


Love this bag.


  • Super light
  • Packs small
  • Stretchy


  • No draft tube

Quality construction, no cold spots, packs down small. I use this with a Sea to Summit 15 degree liner and it's a perfect two-season bag.


I bought this sleeping bag for Philmont this summer.

Rating: rated 5 of 5 stars
Price Paid: $249

I bought this sleeping bag for Philmont this summer. I love theĀ  18oz weight but I was concerned about the temperature rating of 40 degrees, would that be warm enough for the nights at Philmont. At Philmont they require you to have sleep clothes, mine are capilene tops and bottoms # 2 I believe.

I did a shakedown hike at Oak Mountain State Park in AL. The first night temps got in the low 30's and I was toasty as I could be! What a great bag! It had plenty of stretch in it, as I tend to move around quite a bit.

The next night was in the 40's and I left it partially unzipped because i was too hot!I highly recommend this bag .

Retailers' Descriptions

Here's what other sites are saying:

A great combination of high quality goose down, light weight materials, and the supreme comfort of the Super Spiral-Stretch System. SUPER SPIRAL-STRETCHTMSYSTEM (Pat. Pending) MontBell has adapted a classic tailor's trick by integrating a woven fabric "cut on the bias". By orienting the fabric's warp and weft threads at 45 degrees to most major seam lines the sleeping bag becomes more fluid or elastic in nature. Additionally, coiled or crimped fibers are used in the fabric weave to capitalize on their inherent stretch properties. To create an even more comfortable system we utilize an elastic stitch technique to create small "gathers" in the quilting. By combining this stretchy fabric, strategic seam orientation, and the elasticized gathers we offer unrivaled fit and comfort. These innovations allow the sleeping bag to stretch with you as you change positions throughout the night, drawing the insulation closer to your body and eliminating drafty dead spaces. Keep body heat inside your sleeping bag, where it belongs. 800Fill Power Goose Down 12-denier Ballistic Airlight Elite water-repellent performance Size: R/ZIP/ L/ZIP Color: BLRI(Blue Ridge) Weight: 1 lb. Fill Weight: 6 oz. Max User Height: 6 ft. Inside Shoulder Girth: 53"~75" Inside Knee Girth: 44"~62" Stuffed Size: 5.1" x 10.1"

- Vargo Outdoors

The Montbell U.L. Super Spiral Down Hugger #5 is an ultralight must-have for your summer adventures. If space is at a premium, this mummy bag will deliver, while performing like a bigger (and heavier) bag. Phenomenal stretch allows you to change positions, even sit crossed legged, while minimizing dead air pockets. Super Spiral Stretch System offers even more stretch than the Spiral, in addition to orienting the fabric 's warp and weft threads at a 45deg angle, the Super Spiral utilizes an elastic stitch technique to create small ''gathers'' in the quilting Sprawling or claustrophobic sleepers will find refuge in the elasticity of this mummy bag Multi-box Construction with Flow Gate(TM) partitions ensure even heat distribution, limit down migration and add to the overall life of the bag Polkatex(TM) 100 wash rated DWR finish keeps drink spills or humidity from ruining your trip 2-way full-length (67 in) zippers allow the bag to be used as a blanket or joined with another MontBell bag Draft tube flap prevents air from exiting through the zipper Tapered, bias stretch stuff sack offers easy packing Cotton storage sack included Reg - 6'0'' Long - 6'6'' European Norm (EN) independently rates this bag at 48degF/ 9degC (Comfort), 41degF/ 5degC (Lower), 17degF/ -8degC (Extreme)

- OMCgear

Free Shipping. MontBell U.L. Super Spiral Down Hugger 40 Degree Sleeping Bag FEATURES of the Montbell U.L. Super Spiral Down Hugger 40 Degree Sleeping Bag Super Spiral Stretch System Multi-Tube Construction with Flow Gate technology Draw cord for face hole adjustment 67in. mating right and left hand zippers Auto Locking Zipper to limit zipper in.slipin. during the night Single draft flap for zipper protection Tapered, bias stretch stuff sack for easier packing Cotton storage sack included SPECIFICATIONS of the Montbell U.L. Super Spiral Down Hugger 40 Degree Sleeping Bag Weight: 1 lb 2 oz Fill Weight: 8.0 oz Temperature Rating: Comfort: 48deg F / 9deg C Lower Limit: 41deg F / 5deg C Extreme: 17deg F / -8deg C Zipper: Right / Left Maximum User Height: 6' Inside Shoulder Girth: 53in.~75in. Inside Knee Girth: 44in.~62in. Stuffed Size: 5.1in. x 10.1in. 800 Fill Power Goose Down 12-denier Ballistic Air light Nylon 100 wash rated Polkatex Durable Water Repellant OVERSIZE ITEM: We cannot ship this product by any expedited shipping method (3-Day, 2-Day or Next Day). Even if you pick that option, it will still go Ground Shipping. Sorry for being so mean. ALL CLIMBING SALES ARE FINAL. This product can only be shipped within the United States. Please don't hate us. We cannot ship MontBell products outside the United States or Canada. Sorry about everything.

- Moosejaw

You wake up refreshed and rejuvenated after a night in the ultra-lightweight 40-degree down MontBell U. L. Super Spiral Hugger #5 Sleeping Bag. Then you open your tent to a mountain meadow filled with wildflowers and remember why you love to wander away from civilization.


MontBell U.L. Super Spiral Down Hugger #5


The MontBell U.L. Super Spiral Down Hugger #5 is not available from the stores we monitor. It was last seen March 10, 2014 at Moosejaw.

If you're looking for a new warm weather down sleeping bag, check out the best reviewed current models.