The North Face  Inferno 0 Sleeping Bag

[This review was collected as part of a promotion.] BLUF: great, warm, comfortable bag; zipper snags a lot; face cinch cord device too weak. Just getting into winter camping in Minnesota. The Inferno 0 degree has excellent loft that expands as though it's being blown up! Just spent my first night out in it. Temps got down to 10 degrees F, and I was toasty warm the whole night, wearing lightweight top/bottom long underwear and light wool hat (started with wool socks on but removed due to heat). I'm 5'11", 165, with medium width shoulders. In looking at various other brands' bags, this gave a couple more inches of circumference at shoulders, hips, and feet - not so much as to create a lot more space to have to heat, but enough for me (a restless sleeper) to be able to comfortably move around. The regular length is long enough to be comfortable but I do wish I had a bit more length, though I don't know that I would want the extra 6" the long provides. I was able to place a bit of stuff in the bag with me, but it gets tight pretty quick so if you want to do that, I'd consider sizing up. The zipper goes about halfway down the bag. I was initially concerned about this, but it is still easy to get in and out of, and for a 0 degree bag, there's no need for any more venting than that would allow (it does have a double zipper so you can open the bottom half with the top zipped if you want to vent lower in the bag only) and ultimately with less zipper, there's less ability for heat loss through it though the zipper draft tube does work very well. Next though, as they say, the devil is in the details. The zipper snags the vast majority of the time. I found myself on the floor in the living room practicing zipping and unzipping just to hopefully limit the snagging and I did become marginally more successful (this is the only bad thing about this bag, and admittedly, it is pretty frustrating, though fortunately, the snags are easy to fix). A smaller detail that is a swing and a miss is that the spring loaded pincher device that holds the face area draw string when you cinch it tight to seal in your warm air has too weak a spring mechanism. You can cinch it down, but as soon as you move at all, the string pulls through the cincher device even though it is not depressed to the open position. I may just take the much more sturdy one from my 20+ year old Cat's Meow and swap them out (bafflingly ((pun intended)), the 20 year old Cat's Meow doesn't snag nearly as much so it would seem TNF has slid backwards with their zipper choices). Overall, I love the warmth and comfort of this bag and would recommend it, but be forewarned about the zipper (moderate issue) and cinch device (not a big deal).

I wish I hadn't bought it. I used it for cold weather backpacking on the PCT. The zipper snags all the time, and I can't get the zipper to go all the way up so I am unable to take full advantage of the draft collars. I do not feel it is even close to a zero degree bag. Maybe if the zipper didn't snag so badly it might feel warmer, but I can feel the cold seeping through it. The footbox felt warm, but above that, even with all my clothing on I have been feeling chilled in mid 20s temperatures. So, unfortunately, I will have to replace it with something warmer and with a better zipper. Yes, I am disappointed. I do not recommend it.

Ive used this bag for 2 months consecutively, the coldest ive used it in is about 15 degrees, its always been very warm. The shell repels water well, i haven’t had any condensation or rain get thru the bag. As other reviews mention the zipper snags a lot, for the price of this bag the wuality of the zipper is pretty ridiculous. if you arent careful with it, it will pull off the tracks completely. I have had to replace the zipper pull twice because of this. There also isnt a velcro piece at the top of the zipper so if you move a lot in your sleep it might start to unzip on you. It broke in the middle of a 2 week trip for me. On long trips i recommend bringing a zipper repair kit, it adds almost no weight and will get used. When i first used the bag the loft was great and it even added a lot of comfort to my sleeping pad, but after about a month of use, all the down where i lay is very flattened. I dont know if this is the down not being distributed evenly or getting compressed overtime (Even with storing it unpacked and fluffing it before using it) Depending on your sleeping pad this might affect your warmth.

I use it for backpacking with the scouts, its wonderfully light weight. I am small guy so its roomy enough. You have to really take your time with the zipper as it snags the second you look at it. But for the zipper it would be a five star bag.

I bought this last year, for a few tracks to Nepal, base camps were all above 19,000'. Great bag, zipper is horrible, had to replace the zipper after first trip, otherwise it's very warm.

[This review was collected as part of a promotion.] Good warm sleeping bag- only problem is that the zipper tends to snag- otherwise seems pretty weatherproof

[This review was collected as part of a promotion.] Very nice warm bag that fits well- only problem is that the zipper snags easily

[This review was collected as part of a promotion.] Got Bag but be careful when zipping up.