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Description

Just so we're all clear, Helium is lighter than air.

The Marmot Helium Sleeping Bag packs smaller than a loaf of bread and can take you down to 15-degrees while weighing in at just over two pounds. Amazing? Well, yeah, but that's par for the course for Marmot.

  • EN comfort-rated at 28-degrees F for shoulder-season backpacking in the mountains; lower-limit-rated at 16-degrees F for occasional use during spring mountaineering expeditions and colder nights in the woods
  • Premium 850+ fill goose down packs down well, rebounds nicely after repeated compression, and features a high warmth-to-weight ratio
  • Ultralight Pertex Microlight mini-ripstop outer shell is highly breathable and it resists abrasion and wind like a champ, while its DWR finish repels frost, dew, and condensation
  • Recycled mini-ripstop polyester Pertex Microlight lining is smooth on your skin, breathes, resists condensation, and helps to reduce fossil fuel emissions to keep our planet healthy
  • Down-filled passive collar and full-length draft tube protect against areas where cold can creep in unexpectedly
  • Nautilus 6-baffle hood with drawcord cinches down and guards your face in drafty tents
  • Stretch tricot baffles extend the life and shape of bag, hold the down in place, and prevent cold spots to improve overall warmth
  • Large trapezoidal foot box decreases constriction at the bottom of the bag
  • Face Muff allows hood to be cinched without irritating your face
  • Entire bag weighs less than two pounds (regular) for ultimate backpacking and trekking performance
  • Zipper garage and smooth area around the face reduce chafing and discomfort when you're tucked into the bag during cold nights
  • Zipper guards prevent snagging and help to extend the life of the bag
  • Loop at the footbox lets you easily hang the bag to air it out
  • Included nylon stuff sack lets you pack the bag down to an incredible 7 x 7inch package (both regular and large) so you can easily find space for it in your pack
  • Included storage sack provides a safe place to store the bag at home and keep its loft over many years of use
  • Filled in Santa Rosa, CA to ensure quality and domestic benefits

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Review Summary
5
42 4
7 3
2 2
1 1
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Marmot Helium Sleeping Bag: 15 Degree Down

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Here's what others have to say...

5 5

Wonderful choice

  • Familiarity: I've put it through the wringer

This was a big upgrade for me as far as sleeping bags are concerned. I have always had the heaviest, and bulkiest bags. This is neither. The bag compacts down to an unbelievably small size and is so light its hard to believe how warm it is. I got this for moderate temperatures, desert camping during the winter and wet summers in the Unitas. So far it has been the perfect bag, if it gets too warm I just unzip the side real quick. I look forward to taking this on backpacking trips and I always get pretty excited to sleep on it.

Wonderful choice

I am thinking about buying this bag. but...

Posted on

I am thinking about buying this bag. but what if I use it in summer and night temperature is between 50 and 60 Fahrenheit. Will I just be sweating like crazy? I imagine I could just leave it open and only wear short undeprants... Thank you for any input on this. Best regards, Peter

Responded on

Depends a bit on personal preference, but for me this bag would be too hot at those temps.

Responded on

Thank you David for your input. I will look for a bag that fits the range of temperature I will mostly plan to camp in. Probably makes more sense.

Responded on

I think you'll find a 30 degree bag puts you at a tolerable heat level at those temps (you'll still be very warm, but you'll also have a bag that you can use in other seasons). That said, I have a 30 and 0 bags, and I often wish I owned a 40 and a 15 instead.

When was made this bag? What year?

Posted on

When was made this bag? What year?

Best Answer Responded on

This is the 2013 model year version of the Marmot Helium Sleeping Bag: 15 Degree Down.

This bag has a 2 way zipper?

Posted on

This bag has a 2 way zipper?

Best Answer Responded on

Yes. The Marmot Helium has a full length 2-way zipper. Great for venting or sticking a leg out.

Lets talk foot zippers... Have a nice Kelty...

Posted on

Lets talk foot zippers... Have a nice Kelty but its old and needs to be replaced. The best thing about it being able to unzip the bottom and let my feet hang out if needed. Hot feet in sleeping bags are the bane of my existence. Does this bag--or any other--have a foot zipper?

Responded on

Unfortunately the Marmot Helium does not have a zipper all the way down through the footbox. However, there are other options. I would recommend the Marmot Trestles 15 Sleeping Bag for a synthetic version of a similar warmth bag that does zip out the footbox. I will let you know if I find a down option but I am sure others will chime in with their own suggestions.

Responded on

Hey ADKelley!

Your prayers have been answered, albeit a bit on the late side.
A few companies now incorporate this feature into their bags!
Chat or call in to speak with one of our gearheads for more info.

Responded on

I ended up going with a bag w/o a foot zipper and its working fine. I primarily use it as a "down comforter" in my van. The old bag's zipper stopped halfway and an extra vent at the bottom was handy. The new bag's zip goes much farther down so heat doesn't build up as much when unzipped all the way.

5 5

Another great bag from Marmot

  • Familiarity: I've used it several times

I got this bag for a late November trip to Arches, Capitol Reef and Canyonlands and it did not disappoint. The temps ranged from 50's in the day to low 20's at night and this bag performed. I'm usually a cold sleeper and for as light and small as this bag was I was worried I was going to have some cold nights in it. I experienced just the opposite. I spent most nights with the zippers open various amounts to vent the excess heat. Only my last night in Canyonlands when freezing rain turned to cold wind and snow did I have to go full zip. By morning I'm usually happy to get out of my cold bag and get moving to create some heat, but the Helium left me wanting to sleep another 10 minutes.

The only issue I had with this bag was the zipper snags a little if you are not careful with it. I just ran my index finger along in front of the zipper to clear anything out of it's path and it worked about 95% of the time. Once or twice I snagged the draft tube, but not bad enough to get hung up, I just backed the zipper off and ran it up again.

I am 5' 10" and weigh about 165 lbs give or take and this bag was plenty roomy. I had enough room to roll around in my sleep from side to side without unzipping which was nice.

This is definitely my new favorite sleeping bag.

5 5

First down sleeping bag

  • Familiarity: I've used it once or twice and have initial impressions

I'm totally stoked to finally have a down sleeping bag. I cannot complain about the weight and compact size. It's awesome on those points. This thing kept me pretty warm, too, without much fuss at all (though I do recommend wearing socks). The first night at the trail head (Pine Creek, Sierra Nevada, in August), I was only in shorts and a T-shirt and stayed warm enough.
I was annoyed to see a few feathers come out over the course of my week-long trip. I'm not sure if that's typical for down bags. As some have mentioned, the zipper can be a little finnicky. I found careful placement of a finger while operating the zipper kept it from snagging. I got the regular size which worked for length (I'm about 5'10"), but there is not much room sideways. I'm a fairly slim guy but with somewhat broad shoulders. I was okay, but I think it could easily get tight if you're a larger fella (or maybe just a little uncomfortable because of feeling constricted). I'm a little concerned abou the durability of the stuff sack, particularly around the sinch cord. I'm thinking a little TLC while stuffing the bag should keep it in working order.
I slept under the stars a couple times and in a tent the rest of the nights. The drawstring worked great, and stayed pretty cozy. Overall, I'm very pleased with this bag.

5 5

It just feels right

  • Familiarity: I've put it through the wringer

I got the long and at 6'3" 195 this bag could not be a better fit. Every night in this bag I have been comfortable. I tend to move a bit at night and this bag has never felt constricting. The worst mistake I made was wearing thick merino wool one 27degree night, ended up almost sweating..
There are fancier bags out there, but for the price/weight/warmth/pack size I like this bag the best.
Perfect fit to go in the bottom on a krestel 48l WITH my down vest/jacket.

5 5

Light but warm

  • Familiarity: I've used it several times

I have used a zero degree bag (also Marmot) for several high sierra trips over the past several years and finally decided to get a cooler bag for July/August trips. I bought the Helium because it's light, but also because it packs small. It fits really well in my smaller backpack (59L). I was afraid it would not be warm, but have now used it down to 35 degrees and it was plenty warm. I'm 5'4" and it fits well. I have room to stuff some clothing to keep it warm for morning. Great bag and got a great price at Backcountry!

5 5

Healz yeah that bag is awesome.

  • Familiarity: I've used it several times

I updated from a 20 yr old 15 degree back that was heavier. I am 6'2" and 220 lb. I bought the LONG for more room. I slept like a baby at Mount of the Holy Cross. Perfect bag for me. Packing size and weight were just what I expected....

Comprehensive video review

Posted on

800 plus sleeping bag reviewed.

Responded on

Thanks for taking the time to do this review. Very helpful and very honest evaluation

Hello. I want to purchase this bag but...

Posted on

Hello. I want to purchase this bag but can't decide on length. I am 5'11.5" and will use this bag for 3 season use. Regular or long?!?!?!?! Thanks.

Best Answer Responded on

I am 5'10 and use this in a regular and find it quite roomy. I don't think you will need the extra 6" of the long.

Responded on

I am 6'0"and weigh 180#. I own the Lithium in Long, but bought the Helium in Reg. to save a little weight. I found I feel a little claustrophobic in the shoulders in the Regular, and have just exchanged it for the Long. If you weigh 180# or more, or just like a little more shoulder room, I suggest the Long for you.

5 5

Best piece of gear I own.

Hands down.

5 5

You must have this bag.

  • Gender: Male
  • Familiarity: I've put it through the wringer

I bought this bad about 9 years ago? Maybe a little longer and I bought it because I was in the market for a down bag. I read many reviews at the time and decided to drop the serious dough on it. Since then I have used it in 10 degree temperatures never being cold except where the bag met the ground due to a bad choice of sleeping pads. You must have the right pad because where the down is compressed it is useless. I have used it in 40 degree temps though it starts to get a little too warm in the 60s but can still be used if adjusting how much of the bag lays on you above that. This bag is what turned me onto Marmot and 850+ down. Super lightweight and I have had this packed down to the size of two large grapefruit. You have to be a little careful with the zipper because it will get stuck on the material if you dont watch it. This bag has lost very few feathers by them sticking through maybe 10 I know of over 9 years. I am Large and it might be a little tighter than I like in the shoulder area but certainly not so bad I would ever give this bag up. After 9 years it shows no sign of wearing out. If you are on the fence, have the cash just buy it and thank me later. Note: ALWAYS store your down non-compressed. Long live Marmot.

5 5

Unreal!

  • Gender: Male
  • Familiarity: I've put it through the wringer

I've camped in wet and dry, from East to West, and this thing kills it! I typically get pretty cold but not in this. Night's above 25 I can easily sleep with it unzipped like a blanket and be completely warm. Seriously love Marmot sleeping bags.

4 5

Outstanding Bag!

  • Gender: Male
  • Familiarity: I've used it several times

I only gave this 4 stars because of pone big issue that kept haunting me every night of my first trip using this puppy. The zipper snags way too easily, and when all you want to do is get into a warm sleeping bag, it can be very tedious to zip up your bag.

That said... with that out of the way, I simply can not fault this bag one bit. It is comfortable, it is big, it has wide shoulders, and it stops cold wind from entering the sleeping bag.

If you are a warm sleeper, this bag may even be too hot for you!

The bag packs down smaller than any other bag that I have owned in the past, and weighs next to nothing too.

I am around 6 ft 2 in, have a lot of extra padding around the mid section, and I ended up purchasing the long bag, and that gives me plenty of room to wiggle around, plus extra room at the shoulders.

All in all, I don't think you can go wrong with this bag at all. Just mind the zipper!

5 5

First time camping: Glad I had this one!

  • Gender: Male
  • Familiarity: I've used it once or twice and have initial impressions

Got this bag before heading to Ragnar's Trail Experiment. Never been camping for real before, got this on a recommendation from a friend. Anyway, the weather was cold and rainy, and I was toasty warm and comfortable. I know I'm just a newbie to camping, but this Bag was AWESOME, I think I'll go camping more now, just so that I can use this bag! Disclaimer: It was not snowing, but it was probably in the mid 30's in the night. The Bag performs as advertised. Of course, I was inside a tent with 4 other people and that probably contributed to keeping us warm, but the bag merits the 5 star review I'm giving. Oh, and the fact that it compresses to a small size doesn't hurt one bit.

5 5

Best in the Universe

Only the Plasma is better and the Plasma doesnt have a membrain version so if you want a membrain (which i do living in Canada, then there isnt a better bag in the universe. (outerspace aliens dont need sleeping bags cause they have a heater control pannel built in their brains).

3 5

OK bag

This is a basic bag. It is nice and roomy and opens pretty flat for a mummy bag. No draft collar. Draft tube is good. Zipper is better than some but still snags. Nothing fancy about the hood or bag in general. Material has a slippery feel. Seems pretty old tech to me.

Responded on

You must not know very much about sleeping bags. Go back to your Malwart specials.

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