How to Choose Sleeping Bags for Backpacking
REI Co-op Lyra 24 Sleeping Bag - Women's
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Tapered at the shoulders and roomier at the hips, the REI Co-op Lyra 24 sleeping bag is tailored to give female backpackers 3-season warmth and excellent compressibility at a great price.
Shop similar productsKey Details
Fill
Synthetic fibers
Temperature Rating (F)
25 degrees
- REI-exclusive insulation uses a mixture fibers to create the right balance of compression, recovery, warmth, loft and softness
- Designed for women: increased hip room and decreased shoulder room offer better thermal efficiency
- Hood holds a backpacking pillow (sold separately); pad loops hold a sleeping pad (sold separately) in place
- Draft collar, face muffler and full draft tube keep cold air out
- Interior pocket for stashing essentials
- Differentiated drawcords at hood and neck (1 round, 1 flat) simplify adjustments in the dark
- Antisnag zipper guard keeps zipper operating smoothly
- Shingled construction with overlapping layers eliminates cold spots
- Water- and abrasion-resistant ripstop nylon shell
- Trapezoidal footbox mirrors body shape for thermal efficiency
- Comes with a stuff sack for packing and a roomy nylon/mesh sack for breathable storage
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Our backpacking bags are rated for temperature according to an independent testing protocol: International Organization for Standardization (ISO) 23537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
View all REI Co-op Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 12 degrees (F) - EN |
| Tested Comfort | 24 degrees (F) - EN |
| Temperature Rating (F) | 25 degrees |
| Temperature Rating (C) | -3.9 degrees |
| Shell | 30-denier ripstop nylon |
| Zipper Location | Right |
| Insulation Type | Synthetic |
| Fill | Synthetic fibers |
| Lining | 40-denier nylon |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 8 x 18 inches |
| Gender | Women's |
| Sustainability | From a Climate Label Certified brand |
Buying Advice
Better gear is built together
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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kellyz2017
Draper, UT
Love this bag!
8 years ago
I searched forever to find a great durable bag for Spring/Summer camping. I am a cold sleeper so I probably could have went with a lighter bag. I tried this and the Kelty bag which is down. I went with this bag I loved the colors better and this one was perfect for me at 5'2" and 115 it fit great, the Kelty and Marmmot bags I looked at were just a hair to wide. We tried out the bag in our backyard in April for a mini camp out when the temp dropped to about 35 overnight and this bag was awesome and I slept like a rock.
Yes , I recommend this product
Conz
Virginia, United States
No issues with dampness
7 years ago
I was torn between goose-down and synthetic. I went with synthetic because the store employee recommended this for more damp areas. Synthetic is faster to dry and better with moisture protection. They were right. I was completely dry when waking up in a damp tent (left tarp cover off). After packing it it didnt smell and it dried quickly after I got home. My only issues, which is why i brought it back, it doesnt pack so tightly and is more heavy than feather-down bags. I decided to trade it in. Im more concerned with weight than anything else. And since Im short I didnt need more weight. Also, Im always cold and I never had a problem in this bag. My feet and whole body were actually too warm in 50 deg weather. Wish it had the foot zipper to cool off feet when too hot. Another reason I returned. No problems with sleeping bag. Just discovered different priority of preferences..
Yes , I recommend this product
Snagggg
Temecula, Ca
Car Camping Made Warm
7 years ago
This is the first sleeping bag that I purchased with the intention of using it in below 30 degree weather. We slept on the top of a butte, in the woods of the grand canyon, in the deserts of sedona and I was super warm in this sleeping bag! Its comfortable, and fit my 5 foot frame perfectly!
Yes , I recommend this product
Nicole66
Salt Lake City
Average, 25 degrees a bit of a stretch
6 years ago
Super cute and I love the color. This is my first mummy bag and I have to say it took some getting used to. I'm 5'6/125 lbs and purchased the regular/wide as I wanted some move to room around and not feel claustrophobic. The length was great, but after a first use and in retrospect I probably should have purchased the regular or fitted because I was soooo cold in 40 degree temps. I tried layering up and layering down with no avail and finally had to add hand warmers to my bag before I could be comfortable. I'll probably purchase a liner for my next try. Lightweight and packs down nicely into the provided compression bag. I also like the hooks on the side to make it easier for hanging up to dry/air out. I mostly purchased based on price and color, would not recommend if tend to get cold at night easily as I do.
No, I do not recommend this product
Haciendo123
Salt Lake City, Utah
Cute, warm, a bit clunky but love it!
7 years ago
This bag is a little heavier than I’d like but is super cute which mattered for me since bags are very expensive. It’s kept me warm and looks great I got the wide for extra shoulder space and it’s been great! Would recommend.
Yes , I recommend this product
Tigerfire
Denver, Colorado
Nice Purchase
7 years ago
Bought this sleeping bag and I am very happy with this purchase. I like that it’s synthetic and not down.
Yes , I recommend this product
TRKB
Arizona
Great sleeping bag!
4 years ago
I went with this bag because I loved the color and it came in long. I’ve used this bag camping in the PNW as well as in the Senora Desert in late October. Even in sub 40 degree weather it’s kept me toasty. I‘m 5’10.5, and I’ve had a lot of weight fluctuations (190-300), and this bag has fit and kept me warm in all sizes.
Age:25–34
Yes , I recommend this product
Tuesday
NYC
Toasty and Compact
6 years ago
Exactly what I needed! Toasty in sub 40s, good compression to fit nicely in my 65L osprey aura and stayed warm even when damp
Yes , I recommend this product
Pirons
Grand Junction, CO
Very lightweight and has extra turning room!
6 years ago
Loved this bag. Keeps me toasty warm and has lot of extra shoulder room.
Yes , I recommend this product