Big AgnesAnvil Horn (650 DownTek) Sleeping Bag

Paired this bag with the Big Agnes Insulated Q Core SLX sleeping pad on my recent 6 day trek in the Sawtooth mountains. Sleeping pad was great but the bag could have been better. Temperatures on the hike ranged from 15-34F through the week.PROS: The built-in sleeping pad sleeve and pillow barn were awesome. Never worried about slipping off my pad or losing my pillow no matter how much I tossed and turned. I'm a side sleeper and tend to switch sides frequently so having my pad stay put was terrific. I'm 5'10" and found the bag to fit nicely. A little narrow in the shoulders, but better than other mummy bags I have used. I was concerned about getting cold on the bottom with no insulation, but paired with the insulated pad I didn't notice any cold from the underside. Bag was comfortable and the material was felt nice.CONS: I definitely got cold in this bag when temps hit low at night. The coldness seemed to seep in on the top side of the bag. From inside the bag, I could see gaps in the down when light out. This is most likely where the cold was seeping in from. I would agree with the 15F rating as I didn't freeze to death, but for comfort I wouldn't recommend using in less than 30F. The other problem I frequently had was the zipper catching the zipper baffle. Eventually this led to the zipper tracks pulling out of the zipper pull. I was able to get it back in place, but not something I was happy to deal with in freezing temps.Overall I was disappointed with the performance of the bag. It has some excellent features, but should be used as a summer bag only. I highly recommend the insulated Q Core SLX sleeping pad.

I was previously using a Kelty 20 degree down bag, my last camping trip I was cold and couldn't sleep due to the constricting feeling of the bag. The first time using this new bag was enjoyable! I first tried the bag on my back deck in 30 degree weather wearing just shorts and a tee shirt, after about 10 minutes I felt warmer then when I got in. The first full trip the temperature was down into the 20's the bag was warm and comfortable while wearing light wicking type thermals and best of all spacious! Im 6-2, 230 pounds and am a active side sleeper so most bags were too confining. I would typically wake up at least once with the bag twisted and binding around me, the BA Wide Long bag felt more like a quilt but still closed in on the sides keeping me warm and comfortable. I was worried the lack of insulation on the bottom would be an issue but it wasn't, its only a few inches wide and was not noticeable, I paired the Anvil Horn up with an insulated Air Core Ultra.

Crazy warm bag when coupled with a good sleep pad. I’m currently using the BA 2-Track 1.5” and have had the system down to 20F with no discomfort. The regular is large enough for a chubby five and a half footer such as myself to move around and side sleep without being overly confined nor having too much room making the bag hard to heat.*Note that this bag MUST be used with the appropriately sized sleep pad as there is no insulation on the bottom!

Comfortable and warm in 15* F Love the feature of having my sleeping pad attached and stayed warm in the cold weather. I’m 5’9” 165 lbs. I slept in fleece lined cargo pants, t-shirt and fleece pull over with smart wool socks. I was using a self inflating pad rated at 6 R value. I’m a side sleeper and have tried smaller mummy type bags that I returned…. This bag is great! I will say that the zipper isn’t perfect, as it will still snag if you rush it. I was worried that I’d need at least 800 fill to stay warm, but the 650 fill apparently does the job for these temps. Not sure how it would perform at zero degrees, but I’m assuming it would obviously keep you safe, just not as comfortable as it does at 15? Anyway,,, I’m happy with it.

I'm 5'8" and a hefty 235lbs. This fit me perfectly with room to spare. Easily spin around in it at night. love the features of the pillow and pad secures. The footbox is wide with extra down there so the feet down get cold. Amazing sleeping bag. Only beef? The zipper, while lightweight, is very fragile. Get's caught real easily on the bag. Goooooo sloooooow when opening and closing. Other than that? Perfection.

This is for regular size 45° only.Backside where you lay has NO insulation. It’s all on the top and sides. If you’re ok with this that’s fine but it doesn’t tell you that.Also, regular does not for a 25” by 72” sleeping pad. I have two different brands that size and the bungee material on the sleeping bag will not stretch over the pad.

It looks nice and works great. The only problem is that it smells like garbage right out of the box. After 1 week of hanging it up to air out and 1 week of camping, it still smells like a warm bag of garbage. Would be 5 stars if it didn't stink.

The sleeping bag is exactly as described. Shipping was fast and it was well packaged. Haven't gone camping yet so i really haven't tested the bag itself out. The construction of the bag seems to be of very high quality.