Big Agnes - Sidewinder SL 20°

I am a very dynamic sleeper, best bag I’ve used is the big Agnes sidewinder.

I have the SL35 and have used it for fall and spring in PA, no complaints. For winter or colder climates the SL20 would probably be more appropriate. I’m a cold sleeper though; I find sleep systems to be very subjective.

Reputable brand. Will likely be expensive. For you 5°C you want a 0° or a -7° bag. In north America that would be a 30 or a 20 and I recommend a 20 Figure out synthetic vs down and side sleeper vs back sleeper. Watch a bunch of YouTube. Read articles.

I'm in Canada. My Big Agnes bag is still called sidewinder 20 😁 Over the years I've learned some understanding of freedom units

Yes I came to say I love my Big Agnes sidewinder! so much roomier for my legs and I love the zipper set up. I'm 5' 10" and the regular is plenty of room for me. I have the SL20 and have been comfy even when temps are hovering around freezing.

Yes I came to say I love my Big Agnes sidewinder! so much roomier for my legs and I love the zipper set up. I'm 5' 10" and the regular is plenty of room for me. I have the SL20 and have been comfy even when temps are hovering around freezing.

I LOVE LOVE LOVE Durston Gear tents. I've got the Xmid 2 and now the Xdome 2 as well. Superior to pretty much any comparable tent that bats way above it's price tag. $269 and under 2lbs all in. As far as sleeping bag, my first one was the Big Agnes sidewinder 20⁰ bag and I liked it. But after having gone out more and more I wanted something that packed smaller so now I've got an enlightened equipment convertible bag/quilt that's 950 down. Packs smaller, a lot smaller, and is substantially warmer overall. But we are comparing a $175 bag to a $400 one.

I do trips late September and I use big Agnes sidewinder sl-20 on a helinox lite cot. Last year it was unseasonably warm at the beginning of the trip but got cooler on the last 2 nights. The first couple nights I just slept with the zipper up half way. IMHO being a bit warmer at night is preferable to being cold. I think in most (not all) September trip situations a 20 degree bag is a good choice. I would consider using my 0 degree quilt (without the bag) if it were expected to be unseasonably cold.

If you are a side sleeper check out big Agnes’s sidewinder or the torchlight- I am also a side sleeper and I like these two

Seconding the Big Agnes down sleeping bag! I’m a side sleeper and finally invested in a BA Sidewinder after years of getting tangled up in my standard bag. More than worth the money.

Big Agnes Sidewinder is a good mummy for made specifically for side sleeping. I have the 20 deg F and it works great. Plenty of room even bundled up fully clothed with outer layers on. The zipper is on the front/top of the bag instead of on the side, which is great for moving with the bag and getting in and out of it. Everyone talks about quilts being the new craze but its definately a matter of preference, some love them, some hate them.

Quilts, semi rectangular bags (Sea to Summit Trek and Ascent Down) or the Big Agnes Sidewinder series are what you want. The Nemo Spoon series of down bags are also quite roomy. I sleep on my side. I use Hammock Gear Econ Borrows most of the time and I have a Marmot Col -20F bag for anything 20F and below.

Ohhh well my big Agnes mattress, my side sleeper big Agnes sleeping bag, my marmot tent