Helium +15 Down Sleeping Bag

Comments about Marmot Helium +15 Down Sleeping Bag:

I've had this bag for a few yrs. I consider myself an average sleeper for warmth and would rate it comfy at ~25F with long underwear.

Positives: super light weight for the warmth- the long weighs 2lb 4oz in a 1 oz silnylon sack. Great construction like all marmot gear.

Negatives: no draft collar- the missing fifth star for me. IMO this is a big omission as this one ounce addition can easily add 10F of warmth; I can feel the heat escaping across my upper chest. The cut is too big IMO, esp from the waist up.

Summary: make the cut a bit smaller and add a draft collar; it would be both lighter and warmer and fit 99.9%.

Comments about Marmot Helium +15 Down Sleeping Bag:

This bag is very light for the temperature rating. It was very comfortable on a 15 degree night in the Sawtooths in mid May. I wore shorts and a T-shirt for most of the night. It was almost too warm on a 19 degree night. The shell seems pretty sturdy and kept the frost outside. The inside is fairly roomy if you need to put on an extra layer of clothing.

Comments about Marmot Helium +15 Down Sleeping Bag:

Have used this bag in the summer in the Southwest US, in Alaska, Australia, and everywhere in between. I have even used it in the fall/early winter in the Adirondacks. This has been my go to bag for several years. It is so warm, comfortable and light that I prefer it to my winter bag, provided I have a warm base layer to wear to bed. Wearing a light base layer, this bag is suitable for all but subzero (F) temps in my opinion, although my body tends to run hot. Also, do not plan on being able to zip it closed into full mummy mode in warmer temps unless you are cold blooded.

Comments about Marmot Helium +15 Down Sleeping Bag:

This bag is amazing! It is light and super warm. Most nights I have used it I have to sleep with it unzipped to cool off. I have had the bag for 2 years with about 40 nights in the bag from 0 degrees to 50 degrees. No sign of wear on the bag yet. It will be a bag that I own for a long time.

Comments about Marmot Helium +15 Down Sleeping Bag:

I bought this for my husband and he needed it before he went on a backpacking trip and I was afraid I had ordered it too late. Luckily Mountain Gear was quick and shipped it right away and we got it in time. My husband thinks this is the best sleeping bag he has ever used and he is VERY experienced in the outdoors and knows the best stuff and this is definitely the BEST.

Comments about Marmot Helium +15 Down Sleeping Bag:

Use from 1st frost to start of June in the Ozarks. Also used on Mt. Rainer Climb (Emmons Glacier route), & Rocky Mtns. Best 15 degree bag having used North Face in the past.

Comments about Marmot Helium +15 Down Sleeping Bag:

It's finally here, a sleeping bag that transcends the common. The Marmot Helium sleeping bag packs smaller and lighter than other bags comparably rated to the same degree of warmth. This means you move faster and farther with less fatigue. This bag is matchless, uniquely suited for greater mobility.

Comments about Marmot Helium +15 Down Sleeping Bag:

I've used the Marmot Helium bag for two years now for different overnight and multi-day backpacking trips in the White Mtns of NH, in the backcountry of Yellowstone, and the Wind River Range in WY. First off, this bag is super light and easy to pack. I love that I can cut some serious weight from my back with this. Also, it's exceptionally warm. I slept toasty and never needed to add extra layers or a sleep sack during temps that dropped just below freezing.

I use the long version, since I'm 6'2" and for a mummy bag it's pretty comfortable. I'm usually a side sleeper at home and this isn't the best for that, but it's not bad. The trapezoidal foot box helps a lot and makes it feel roomier. The zipper performs well. I do wish it had a vent at the footbox, but that's a small issue. Overall, I highly recommend it if you want to cut weight but not give up warmth.

Comments about Marmot Helium +15 Down Sleeping Bag:

This is an upgrade/replacement for my NF blue kazoo.
Just as warm (I can't tell any difference), but a bit lighter.

I've slept in this bag in a 3-season tent in the dead of winter (northern WI) and been just fine.