Marmot Ouray Sleeping Bag: 0-Degree Down - Women's

I'm super stoked for this bag! I've used it once so far when lows were in the low 30's. It was definitely way too warm for the weather, but I was so excited to take it out I couldn't wait and I was glad to know I wouldn't be cold. That being said, I can attest to how well the zippers work and how pleasantly surprised I was to find the main pull is glow-in-the dark! I was able to easily vent the bag in the night to keep my body at a comfortable temperature. And while I haven't used it in colder temperatures yet, I do feel confident that it'll keep me warm into single digits.
This bag lofts up nice and fluffy and is very comfortable to sleep in. I found that I had the perfect amount of space to move around in the bag when it was fully zipped, without it being overly spacious.
The bag does compress down relatively well onto the provided stuff sack, but I found you can cut the size in about half with a compression sack.
Overall, I feel like this bag is unbeatable for the price. It's super warm, not too heavy, and packable.

I'm 5'7", 130lb or so. The Long was perfect for me. The material feels great, soft and quiet. Most other details are what I expect from Marmot. I decided to try the Ouray because I needed a 0-deg bag, and I like Marmot product. Lots of good things as others mentioned, and I'm sure it would have been great, but for a couple things that didn't do it for me.
First, the fill on the bottom did not fill as much as floor models I saw prior to buying this bag. I fluffed and fluffed as much as possible; let the bag hang for over a week; fluffed some more; but the bottom fill never fully filled the baffles. I could see light coming through many spots. Perhaps I got a bag that didn't get filled properly.
Second, I don't like the way the foot box is designed into the bag. It's a bit hard to describe. The bigger space/more fill is good, but getting my feet into the bag is not as smooth as I'd expect. The zipper stops perhaps 12" or more from the bottom of the bag. And it's here where where the trapezoidal foot box begins to take shape. But rather than the bag smoothing down from the body to the foot box, there are these actual stopping points you can feel. If you mis-direct your foot on entry (lights on or off), you could jam your toe into this stopping point. I don't mind getting used to new features on gear, but re-training myself on how to get into my sleeping bag isn't really one of them. I camp a lot; so it's not like I can just "live with it" for the few times I camp.
And the zipper not going down even to within 6" of the bottom of the bag won't let you open the bottom of the zipper a bit to let in a bit of cool air if your feet overheat.
So except for the low fill on the bottom of the bag and oddities of the foot box, this bag would have been great for me. Giving it 3 for these two issues.

I love love love this bag!! It is so warm, and comfortable to sleep in!
I'm going to be honest, my husband may use this bag more than I do! haha. He loves this bag just as much as I do. So men, don't be afraid if it says "women's" on the bag, you'll love this bag too!
This bag is truly comfortable. It has some room to move around while still having that mummy shape to keep you really warm. The down insulation is so cozy, and you can feel how high quality this bag is.
I love the little added features too, like the inside zipper to keep your phone warm at night so the battery won't die as fast, or keep whatever treasures you need near you at night.

Definitely not a night in the Sierras bag, I sweat all over inside of it. Meant for snow/ice camping. Comfy, fairly light-weight. Good shape, durable. Can fit in a sea-to-summit compression sack if you want to get the volume even smaller than the stuff sack (can reduce it by about 50% more in size compressed).

Finally - a zero degree bag that truly keeps me warm!
Love it!
Is spacious and very, very warm. As you will read in other reviews, it has a bit of a funky smell, but it doesn't really bother me/my husband. It can be squished into a pretty small stuff sack.

I used it during our 3 week trip in Iceland where it was cold and wet....and cold and wet and wet and wet. It held up beautifully.
Overall, I highly recommend it if you run cold, camp where you may get wet and like to move around a lot in a bag.

I bought this bag for my wife because she generally runs cold and there are few things worse than sleeping cold when camping. Marmot makes the best bags in my opinion and the Ouray Women's bag is no exception. The pillowy down keeps her very warm and is treated with DWR to combat moisture so the down will loft and continue to deliver warmth in more humid/wet environments. The small details really matter on a great sleeping bag. The draft collar system in this bag is one of the best that I have seen. If you don't know what a draft collar is, it is the small barrier in the bag around your upper chest/neck that keeps cold air from entering the bag via creating a barrier. The draft collar in this bag is well placed, has a cinch and perhaps most importantly is not noticeable when cinched down to allow for comfortable sleep. Unless you are an ultra-light style backpacker you will not notice the extra weight (ounces) or size in terms of packability. There are bags that are ounces lighter and may pack slightly smaller, but this bag is a top-of-the-line alternative for 97% of the camping population.

I could not recommend this bag more highly

I run really cold in general and had a hard time figuring out why I could never get to sleep on camping trips. Turns out the cold was the culprit. Ever since purchasing this bag I've slept like a baby! probably better than a baby. It's definitely a true zero degree temperature rating and could even be used in temps below that in my opinion. The bag is typical Marmot, high quality goodness, and it feels like you are sleeping on a cloud. Only drawbacks to this bag are the weight and the stuff size, but I knew about these going into the purchase. I mainly use this bag for winter car camping and short backpacking trips and the extra weight is well worth it. The zipper also doesn't get caught when zipping up and down like other bags I've used.