How to Choose Sleeping Bags for Backpacking

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A versatile sleeping solution for lightweight backpacking, the REI Co-op Magma Trail Quilt 30 offers the best of both worlds—the warmth and coziness of a mummy bag with the convenience of a quilt.
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View the REI Co-op Magma Product LineView all REI Co-op Backpacking Sleeping Bags| Best Use | Backpacking |
|---|---|
| Temperature Rating (F) | 30 degrees (F) |
| Temperature Rating (C) | -1 degrees (C) |
| Ultralight | Yes |
| Shell | Pertex 15-denier ripstop nylon (bluesign approved) |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 850-fill-power goose down (bluesign approved) |
| Lining | 15-denier ripstop nylon (bluesign approved) |
| Sleeping Bag Shape | Semirectangular |
| Hip Girth (in.) | N/A inches |
| Stuff Sack Volume | 3 liters |
| Compressed Volume | 2.9 liters |
| Gender | Unisex |
| Sustainability | Contains materials that meet the bluesign® criteria From a Climate Label Certified brand |
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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Bought this on sale during May sale, recently did two night backpacking trip on AT. Combined with Nemo Tensor pad, this is a powerful sleep system! Quilt weighs almost nothing and is very warm and comfy. Never had a quilt before this and I’m never going back. Very easy to use and adjust. Absolutely an awesome purchase! I am a 5’10” male, 175 lbs. my feet are size 10.5 and I could see the toe box being uncomfortable if my feet were even a half size larger just fyi.
Took this on a spring trip a few weeks ago in Emigrant wilderness where there was still snow on the ground and night temps were in the 20s. Paired with an air matress and z lite this thing kept me very warm. This thing is crazy light and compacts very small. However, due to the design of the footbox (it tapers into a V) it ripped on my first night right where the 2 flaps meet and fill started coming out. They may need to use better stitching because that's what ripped. Really liked this thing, but I have to return it due to that being a big issue. I toss and turn a bit when I sleep, but this shouldn't have ripped on the first outing.
This quilt's design is just what it needs to be, and all weight savings are accounted for that would make sense and be able to maintain a warrantable product for REI. 850 Grey Goose Down is perfect as the fabric used does not show the down, so white is not needed. I love the sewn footbox. My other topquilts have varying footbox applications, but I usually have them in footbox configuration anyway, so getting rid of a zipper, or snaps or enclosure system is a great way to lose some weight. Very nice sleeping pad attachment. The neck snap system is great and the draft collar is adequate. First night in a tent to 37 degrees, then the next weekend I used it in my hammock up in the Cascades to the low 30s. Didn't miss a beat.
I’ve had this quilt about 2 hours. So far, this quilt is very warm, very lightweight, very packable. However, there is one huge design flaw….. there is no reinforcement where the sewn foot box opens from the rest of the quilt. The strength is dependent on the one or two stitches. I thought it was going to be a problem, and although I was trying to be very cautious, it started to pull apart the first time I tried it out. Come on Rei, you knew this was a weak point. It seems it has been an ongoing problem too. Take heed and add a reinforcement.
Just got back from camping at Mount Lassen National Park with overnight temperatures in the mid-40s, so not a true test of this quilt's temperature range. (But cold enough for me.) This quilt was wonderful! Such an improvement over confining sleeping bags with noisy zippers. High quality down, wrapped in silky smooth and whisper quiet nylon material. Like sleeping in a soft cloud of warmth. Attachments for sleeping pad worked great. The footbox felt roomy. Super delighted with this product and I was skeptical a one-pound quilt could really replace a heavier sleeping bag. Taking it backpacking next, since it passed the car-camping test!
First, this quilt is just what I was looking for: weight to warmth ratio. I’m in love with it already after getting a chance to test it out last night. BUT, this morning I noticed tiny little feathers left behind in my hammock which led me to the discovery of a hole in the seam where the foot box meets. By the looks of it, my guess is the sewing machine was a little off here. It’s partly my fault for not checking it thoroughly when I unboxed it because then I could have repaired it right away and not had the loss of down. I ran an ugly stitch through the area and then reinforced about a half inch on each side so I don’t have to worry. It would be disappointing for someone without a sewing machine but it’s got a bit a character now. Overall its still a good piece of gear.
As other reviews have mentioned, the quilt is high quality and a ultralight alternative to the typical sleeping bag arrangement. I spent a night in Dolly Sods WV where temperatures dropped to the upper thirties. Wearing a beanie, and long sleeve base layers, I had one of the most comfortable night’s sleep in recent memory. Very easy to adjust the opening to your comfort, and if you move around and/or sleep on your side, this bad boy will lead you to the promised land. The amount of outrage over the stuff sack is absurd. With 40 seconds and minimal effort, you end up with a nice compact package and a lifetime of happiness ahead of you. Overall great product, I highly recommend it.
For years I've had issues with sleeping bags. Mainly, right as I fall asleep my body heats up and I get all sweaty in my sleeping bag, then when I try to cool down I get too cold. For years I've fought to get good nights sleep in the woods. This has been my solution to all nights 30 degrees or above. Then I have a second 0degree bag for winter camping. You have the ability to stick a leg out of the quilt and keep your body temp regulated. I use a spare sheet as a bag liner replacement. Allowing my bare leg to come in and out of the sleeping bag fully. Make sure you know and understand the R value of your pad. That can come into play since you are sleeping directly on the pad.
Got this based on a recommendation from an AT thru hiker. Used it once when nighttime temperatures were ~39 degrees. Unfortunately it was cold for me. The footbox was fine, but the upper part of the bag had cold spots. If you held the bag to the light you could see spots in the vertical baffles where the light would shine through. I believe the down in this particular bag was understuffed. I ended up returning it. Makes me nervous about any bag that has the long vertical baffles as I think it makes it harder to control where the down is. The response "Well, just sleep with more clothes on" wasn't really an appropriate answer. I"ll have to look elsewhere for a quilt
I got two of these last year, one for me and one for my daughter for our transamerica bike trip. We had a couple of cool nights and it worked well, but I also sleep pretty warm which is why I wanted the flexibility of the quilt. I also used a cotton sheet with a zipper so in the warmer climates I wanted layering. The combination was fantastic. I was really impressed and the compact pack size was a huge bonus. I was worried about the lightweight fabric, but over the 11 week trip we only got one small hole which seam sealing glue resolved quickly. I will likely use quilts going forward for the versatility.