Sierra Designs Nitro 30 Sleeping Bag Review

Looks like this is a Men's Regular bag, not a Women's bag. Most males of average height (at least in the US) would fit in this bag.

The idea behind using clothing to boost the rating of a bag is multi-use. You already have the clothing with you for camp wear so why not sleep in it and carry a lighter bag? The caveat with doing this is you need to know what you need to be safe at expected temps. This includes the bag/quilt and the clothing you use in combination with it. What is necessary varies from person to person.

One unobvious factor in the perceived fit of a bag lengthwise is foot size, and the natural angle ones foot assumes when one is lying down. The longer ones feet, and the more they angle downward, the more one feels one is pressing agains the bottom of the bag.

One thing to remember is this bag is more stretchy than some. I own a Ul Spiral down hugger #3 (which I use) and the Nitro 30 (Which my Son, Boy Scout uses).

The Nitro can stretch and conform to the user, which I think contributes to its extra warmth on top of the extra Down, but does not stretch as much as my spiral down hugger.

I wanted my son to be comfortable when it gets to freezing or just below without adding insulated clothing (Beyond some Capilene-3), so I went with the nitro because of the extra Down. It is warmer than my Spiral Down Hugger, but I can wear some insulated tops and bottoms (which I didn't want to invest a lot of $$$ in for my son since he is still growing, like a weed)

For my Son the 6 oz lighter (Than the MH Phantom 15) makes a difference, plus I got the bag for $189 on-sale! try thefind dot com to look for deals.

For 32oz 15 degree bags I am looking at the UL down hugger #1

I am debating on getting a Nitro for myself, I love the pad attachment option because I miss my old Big Agnes bag comfort (No rolling off the pad) but Big Agnes bags tend to weigh more than a higher end bag, and their temperature ratings are WAAAY off (IMHO).

Just curious, but IIRC, BPL doesn't like to talk about how warm a particular bag is based on the factors involved, as stated in the review here. I'm actually glad that a bit of reference was provided this time around, though of course it is to be taken with a fair bit of salt.

cheers,
-jim

I owned a Mont-Bell Spiral Down Hugger #3, and got a Nitro 30 for my son (On sale at Moontrail for $189, they are out, but they will carry it again but at $219). I tried the Nitro and found it much warmer than my Spiral DH #3, but it was more cramped. It does have some stretch technology, but it does not stretch as much as the Mont-Bell.

I am about 5' 7" and weigh 220 lbs, so I am pretty wide at the shoulders. If you are a back sleeper, then the Nitro 30 may work for you. but if you are a side or stomach sleeper, forget it. I was barely able to wear a Ibex LS shirt and a Mont-bell Thermawrap jacket in the Nitro. I do wish I had bought 2 at that price, but I sent the Spiral Down Hugger #3 back and ordered a MB UL Super Stretch #2, which should have even more room than the Spiral and be a lot warmer (14 oz Down versus 10 oz), but weighs 9 oz more than the #3 and 3 oz more than the nitro 30.