I tested this bag in fall 2012. At 2#6.4oz it was a bit heavier than advertised. Though it seemed to add considerable bulk, the waterproof breathable membrane was a strong sel…
- Ati, 01/25/13

Was excited when I received this bag due to positive reviews I read. Got it out of the shipping box, and tried the cinch cord to close the hood around my face. It hardly cin…
- Lisa, 11/29/12

I got this sleeping bag for a trips up through the Rocky Mtns, This thing has helped my weather some very cooled nights. Teamed up with sleeping bag liner, the light weight…
- Michael, 12/17/11
Colorado Springs

Marmot makes top quality bags and this is no exception. I've had the Helium for a few yrs and the only thing that I'm not ecstatic about is that it doesn't have a true draft…
- Steve, 12/07/11
TN

I bought this bag because it became much to cumbersome to haul around my Kelty 0 degree bag on backpacking trips. I've had it for about a year, and I love that this bag came w…
- Landen, 01/07/13
Marquette, MI

I have used this sleeping bag several times this spring, I have not really tried in in lower temps (below 30) since it was so warm this spring. Overall it is very conformable…
- steve, 04/18/12
Fort Wayne, IN

One neat feature is how unbelievably lofty this bag is. As soon as its unstuffed it swells up like a zeppelin, except so far it hasn't caught fire (which i appreciate, althoug…
- CHARLES A, 08/04/10
DC from Knoxville, soon to be San Francisco

This was recommended by a friend who's done extensive work in the Arctic and has used a Lithium for years. I got one for a trip to Nepal. It’s long for me (5’4”) but I l…
- Victoria, 09/12/12

I got the long, extra wide, not because I am oversized, but because I wanted a little more room with the benefits of a mummy bag. I loved it. I could move my legs easily and…
- Bill, 05/19/13
Columbia, PA

Very lightweight bag, comfortable fit, and kept me warm. However, we had some condensation issues in our tent and I ended up retaining some moisture (on the exterior of the ba…
- Mack, 08/28/08
Columbus, OH

Got this bag to do some backpacking outside of Durango, Co when the weather was a bit chilly 15 degrees or so. This bag kept me plenty warm. Other bonuses super light and with…
- Jeremy, 12/13/11
Peoria, AZ

In addition to the usual suspects of short winter trips, I have taken this bag on three expeditions to the Alaska Range. I sleep plenty warm in -20 (in a tent) with it. I ha…
- Greg, 08/18/10

This is one of the best gear purchases I have ever made. I have tested it to -17 without a tent and I slept comfortably all night. Lofts as well as the day I bought it. Use…
- Scott, 05/01/11
Kansas City

So mind you this is my first 'real' sleeping bag...I finally graduated from my 5th grade princess polyester bag. Ok, while that might not be true, this is my first light weig…
- Jules, 09/27/12
Ann Arbor, MI

You can fit two small people in here and they will be really warm. The length is a little much for someone that is 5'1". The zipper is not snagless. It would be perfect if it…
- Mark, 02/21/12

Moosejaw, you're messing with me, this is my third attempt to post this review! Me: Female, 5ft 7in tall, clothing size XL; I get cold when I sleep Women's Ouray Long:…
- nancy, 06/01/13
Upstate New York

I had a great review written, but when I pasted it here, it had way to many characters! So here's the concise version: Me: Female, 5'6 1/2" tall, clothing size XL, broad s…
- nancy, 06/01/13
Upstate New York

Great bang for buck, doesn't come much better than this. Have used this bag down to -15deg Celsius in the snow and still stayed warn. Sure it's not the lightest and a little o…
- Mark, 08/04/12
Sydney Australia

Got this for my son that is in boy scouts. They camp in any weather. It kept him warm. He was loving it! He will be using it all winter on trips. Will keep you posted if a…
- Cheryl, 11/08/12
Ohio

I absolutely love this bag for it's warmth and loft. Sleeping on snow and ice in -20 degree temps I was nice and toasty. It's also super roomy so you can move around in your…
- Robert, 08/02/11
Longmont, CO

I love this sleeping bag. It's so fluffy I need a new tent.…
- Marthe, 11/12/10
Norway

I'm a pretty cold sleeper, but this bag is toasty warm and cozy, unless you are going somewhere well below freezing. The stash pocket is a nice feature, the zipper is mostly s…
- Sylvie, 09/21/12
Santa Cruz, CA

I have the mens 25 degree goose down bag and have used it many times. It is too warm in mild conditions so can not zip it up. In 35 degrees it has a cold spot on top due to th…
- timothy, 11/05/12
Greenville