There are a lot of lightweight down bag options these days, but for the price I don't think you can find a more high quality, lightweight bag than the Arroyo. The Atom and Hydrogen are great options bags as well, but you are paying more for a slimmer cut and only shaving a few ounces. You can't go wrong with Marmot down bags, so look for the one with the most comfortable dimensions for your body, or whatever is on sale at the time. I got mine at the end of last season for $160! A great accessory for the 20-40degree down bags is a small compression sack from Granite Gear or Sea to Summit. This compressed my Arroyo to the size of a mini soccer ball which makes it easy to pack in any size bag.

I've used the bag about 6 nights, and love my new all-around 3-season gem. I find this bag warm well past the 30 degree rating (but I'm a warm sleeper). Initially, I bought the Marmot Pinnacle (15 degree down) but roasted when it was 25-30 degrees...so the Arroyo was the next step up. The quality of design/materials is top-notch and I love the zipper because it has stiff coating on the baffle which prevents snags. The down is plush, nylon interior is silky, and the shell feels like it could take some abuse...not like the nylon tissue paper of most ultralight bags. Weight is meager, and you can also compress this thing down to nothing (half a loaf of bread). The price may be on the upper end, but I have no qualms about paying for quality and something built to last. Buy this bag and you'll be down too.

I have had this bag for several years now and its still going strong. I have used mine down to freezing several times and been comfortable with a T-shirt and shorts but I had the hood almost closed. I don't have a draft collar in mine and I think the "draft tube" listed is the part that covers the zipper. I have been shopping for a 50d summer bag but I can't find anything significantly lighter than this other than the atom, which is only 11 oz lighter. I have been comfortable in this bag in the 50d range with the zipper about half open. I have a long and it fits me perfectly at 6'4".

3 nights, 1 on the south rim and 2 by the Colorado river in the Grand Canyon. Bag is so light and packs super tight, my backpacking partner was jealous for sure. Their not kidding about the 30 rating though, it was cold in the canyon mid 20's and we were sleeping under the stars... I wore my merino wool underwear and was fine but with out that extra layer I am not sure if the bag could have done it alone. Love the simplicity of the design and the quality of build wont let you down. Highly recommended!

Great bag for the price. The arroyo moved to a baffled construction rather than the sewn through of last year, making it very similar to the hydrogen at a better price point. It is well designed, uses ultralight fabric and 800 fill power, quality construction. Temp rating is spot on, compacts to a nice small size. What more do you really want? Um, I guess the color is kind of bland, but whatever.

Just got this bag and put it to use right away. 12,500ft, and freezing temps... ice on tent in the morning! Purposely slept only in shorts and shirt to "test" the bag: worked great. Sealed up well around the face, and had more than adequate "wiggle room" for the rest of my restless body.

This bag is everything I expected - super light, warm at 12,000 ft, and compacts to the size of a loaf of bread. My only concern before buying it was that my dog would tear it up as he "prepared" for bed (i.e. claws on the foot of my bag to get it "comfy"). The material is much stronger than anticpated and my worries are no longer. I love this bag and look forward to using it for years!

The Marmot Arroyo is an excellent 30-degree sleeping bag. Truthfully, I would have preferred the Marmot Hydrogen (with its 850+ down compared to the Arroyo's 800+ down), which is a bit more expensive, but I could not purchase one with a right-side zipper. (The wife prefers a left-sided zipper, I require a right-sided zipper--together we are indeed compatible.) I tend to sleep on the warm side, so above 50 or so degrees, the Arroyo is a bit on the toasty side. My wife, who sleeps on the cold side, loves the bag at any temperature 30 degrees or higher. We found that the 30-degree rating is accurate. I would like to test the bag at under 30-degree conditions just to see how well it performs under pressure. The Arroyo is light--under two pounds. That's a very easy feature to appreciate. It really is a lot of bag for its light weight, and like all of Marmot's upper-end bags, the Arroyo is a joy to compress into a stuff sack or backpack sleeping bag compartment. Recommendations? Bring on some brighter colors! We highly recommend the bag. Eventually, we will purchase winter bags--they, too, will be from Marmot.