REI Co-op - Magma 30 Down Trail Quilt

My advice: NEMO women's Disco 15. First off, sleeping bag temps (ISO/EN) are rated for slight discomfort. If you want to be mostly comfortable at 30F, you get a 30F bag; if you want to be warm and toasty, you get a 20F bag. If you think temps may drop into the 20s but may realistically be 30s, you should get a 20F bag; if it hits 20F, you're fine but you'll otherwise be toasty. Women's bags are rated at the Comfort rating which is toasty and nice for a warm sleeper, slightly uncomfortable for a cold sleeper - which is the assumption for women. Also what it sounds like you may be: a "cold sleeper"/someone who likes to be warm at night. Know that you can - and should - try other gender bags for fit as you may find better fits across genders. But keep in mind there is ~10F temp difference between men's fits and women's fits (men's will be colder for cold sleepers, women's will be warmer for warm sleepers) and so don't just trade 30F for 30F. In your case, use the "Comfort Rating" as your slight discomfort temperature and adjust from there. Know also that this may work against you price-wise; they do not price based on fill, they price based on advertised temp. So a women's 30 will be the same warmth as a men's 20, but will be priced as a 30, not as a more expensive 20. So the Magma and the Disco may not be warm enough for what you're looking for. Of the listed bags, they'll fit in order of how you listed them: Disco will be the widest, then Big Agnes, then the Magma. The Magma is a true backpacking mummy and won't be ideal for a side sleeper. The Disco has extra space in the shoulders and hips which are ideal for getting on your side in the bag. So for a cold sleeper who sleeps on their side and is likely to have some 20F but maybe mostly 30F nights - NEMO Disco 15. Should check all of the boxes. The one big difference between the NEMO and the Magma is down fill power, which also impacts compressibility and weight. Magma is an 850 while the Disco is probably around 650-700. If you want a similar fill power bag go with the Riff 15. 850 fill down also warms up quicker because the feathers are smaller. It will also probably be more on par price-wise with the Magma. The Riff has all the same features as the Disco though may have a slightly slimmer shape. If you can, go to your local REI and get in each one to see which are comfortable and which are not. But based on the info you've given, I'd suggest either a Women's NEMO Disco 15 or NEMO Riff 15.

Magma 30 is pretty good. Make sure you have a good sleeping pad, r value of at least 3.

Try a quilt. I recommend the sierra designs 20(?) or rei magma

The REI Magma mens/women's bags zip together and are wonderful. They have both 15⁰ and 30⁰ bags.

Remember that you can move your legs around all you like by moving the sleeping bag with them. I sleep in the fetal position in a very narrow bag because I curl the bag into that position with me. (I have REI's magma and it's extremely toasty)

I have an older REI Half Dome 2+ that I love. It's (barely) light enough for short backpacking trips, spacious enough that I have room to spread out when car camping, but not so big that it's a hassle to set up or put away. I camp in it by myself, but it's big enough my husband or a friend could share it with me and we wouldn't feel cramped (a lot of "2-person" tents have dimensions that, unless you're full-on snuggling all night, are not going to be at all comfortable for two to share). I'm also a quilt convert. I have to be able to kick a leg out when I'm sleeping, and traditional sleeping bags are usually too constrictive for me. I have an REI Magma 30 quilt and I really like it. You're going to want to try on backpacks in person so you can be sure the harness and hip belt work for you. They're all a little different so recommendations are hard to make. That being said, I'm extremely happy with my Gregory Deva 60. It's ridiculously heavy (well over 4.5 pounds) but fits so well I forget I'm wearing it. The hip belt works so well with my body that I can lift the load completely off my shoulders and carry all the weight on my hips if I want. If you don't have to get this stuff right away, sign up to be an REI member and wait a few weeks. They have a big members-only sale in March, and their biggest sale of the year is around Memorial Day. You'll also have access to REI Resupply where they sell used equipment. You can get some crazy good deals on barely-used gear there.

What temperatures are you likely to be in? Generally speaking, quilt may be your best bet. They have cords that can be secured around your pad and foot-boxes giving you a seal of sorts. As long as you have a strongly rated pad you keep toasty warm. I am a side dleeper and have the [rei magma quilt](https://www.rei.com/product/228706/rei-co-op-magma-30-down-trail-quilt) comfort rated to 30 with a zippered foot box. Purchased at rei re/supply and very happy with it. Rei has a sale coming up on the 15th with a 20% off coupon, though that may be for members only.

I went with the Magma and a Nemo Tensor wide sleeping pad. Thanks for the recommendation

I have also gone to ground. I took my quilt with me and love it. I have used a sleeping bag, and it just isn't as nice. My quilt is the Warbonnet Diamondback, and my sleeping bag is the REI Magma. I have never had cold sleeping problems, I just enjoy the quilt more.

Sleeping bags are tough - if you buy a synthetic bag they don't pack down very small and will take up a lot of your bag but down sleeping bags are expensive af. Gotta keep an eye out for good sales - I got a brand new REI magma last year for under $200 (50% off). If I was starting out I would probably allocate more money to a decent sleeping bag/tent and less to my backpack/sleeping pad etc

I ended up going with the REI Magma 30 quilt wide on sale. I took it on a trip and it was very warm. I did not use the right sleeping pad so I noticed the cold from the floor. I got a Trekology r7.2 (doubt it's that warm) sleeping pad for free that's about 30 oz. I will try that with the quilt and see how it goes. Thank you all for the information and help.

Interestingly, I hated my Magma. I don't feel it performed as well as advertised. Got an Enlightened Equipment quilt and have been much warmer.

I like the REI Magma

My order of preference, without prying more info out of you would be: 1. Magma 2. Radiant 3. Nemo ... anyone giving you numbers after the name of the bag is guessing because you never mentioned what temperature rating you need and what geography we are talking about. In terms of r-rating we would need to know what mattress pad you are shlepping too...