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After two seasons of success with its cream-of-the-crop Somnus sleeping bag, Stoic revisited the design of the main opening and changed a front zip—changing to a side zip opening for the SZ 30 Sleeping bag—effectively making life easier than ever for campers and backpackers. Like previous models, this Somnus features lofty, 850-fill down insulation, a vertical baffle design that controls insulation migration (cold spots begone!), and feathery light Pertex Quantuam shell material. You won't find another high-end sleeping solution that's this easy on your back, easy to pack, and easy on your wallet.

  • Redesigned main zipper is located on the side of the bag to give this a more traditional opening that's easier for campers to climb in and out of
  • Longer main zipper runs to within 16 inches of the base of the foot box, almost the full length of the bag
  • 850-fill down insulation provides supreme warmth without weighing down your bag, and is highly compressible to make packing a cinch
  • Pertex shell material creates a durable outer shell without a nasty weight penalty
  • Vertical baffles ensure that the down insulation stays put even if you sleep on your side
  • Draft tubes prevent chilly air from entering around the neck so your heat stays inside your bag
  • Zippered pocket at the footbox holds a hot water bottle to keep your toes toasty on frigid nights

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Stoic Somnus SZ 30 Sleeping Bag: 30 Degree Down

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Here's what others have to say...

5 5

Excellent bag

  • Familiarity: I've used it several times

Blow away by how comfortable and pleasant to sleep in this bag is...the DWR treatment has saved me from a heavy frost while sleeping under the stars, and I've used it down to around 0 on some early season ski tours with no complaints, which honestly surprised me. The hood closure is brilliant too, and elastic so easy on the fabric. Couldn't be happier.

4 5

Heavier than expected

Received the Somnus SZ 30, size long today. Weighed in at 1 lb 13 oz, which is much heavier than I expected. I have the old Somnus 15, with the chest zip, which is an amazing bag and weighs 2lb 1oz on the same scale. I still think these bags are a great value. The 30 sz is also of excellent quality, very roomy, and has an amazing hood with a built in pillow pocket, but I'll be sending it back based on the weight, and count myself fortunate enough that the only thing I have to worry about today is returning a sleeping bag over an imagined 4 oz discrepancy.

I would really appreciate it if Backcountry would post accurate weights on products like these, where a few ounces dictates my buying decisions. That being said, I'm grateful for the return policy.

I couldn't agree more on posting accurate weights. Stuff sack sizes too. We shouldn't have to rely on other customers to provide this data.

5 5

Great Bag; Super Value

  • Familiarity: I've used it several times

This is my second down bag, and is replacing a 600 fill bag. It is roomy, super comfortable, and very compressible. I was initially disappointed because it seemed that the foot box and hood were super lofty, while the main area above my chest was thin on the down. If yours arrives like that, simply shake the bag from the foot box until the down shifts to the middle of the bag down the long vertical baffles. Plusses include a great zipper that never seems to snag, a hood that is not claustrophobic and easy to cinch down to a small breathing hole, a water resistant Pertex outer shell, and a soft and comfortable inner liner. To me, this bag is a super value comparable to much more expensive bags. Get one before they are all gone!

5 5


  • Familiarity: I've used it once or twice and have initial impressions

My first down bag and it is amazing how much more comfortable I was. Like sleeping in a cloud and it was a great value. couldn't ask for more

4 5

Great Value

  • Gender: Male
  • Familiarity: I've put it through the wringer

I was looking to upgrade my old bag for a couple seasons and had my eye on the Stoic line because they were reasonably priced and had good reviews. My primary use for the bag is backpacking, so weight was a concern. I'm not one to pay an absolute premium, but usually select gear based on what I think will be a good value. When I saw the Somnus SZ 30 on sale, I picked one up. The seams are clean, the pertex has a great soft feel, and it is lofty. I am 6' with broad shoulders and got the regular and it fits well. I sleep on my side, back, stomach and the bag accommodates all my tossing and turning. I have room to move around and definitely some space to layer up if I want to push this bag into colder temps. I've had this out for long weekends in the Rockies at around 11-12k (treeline-ish). Night time temps started in the upper 40s, and dropped to around 30. I started a few nights with the bag just draped over me, but ended up inside, fully zipped, and the hood cinched. Good for me to the temp rating, but YMMV. I wear a light base layer, light hat and sleep on a pad with an R-value >5.
The zipper has been snag free. The draft tube is adequate and stays in place no matter how I'm sleeping. The hood cords did not bother me. Like Kayd, I trimmed them. I found that cinching more is better to avoid them in your face. I have not used the footbox pocket, except as a sleeve to hang the bag for storage, which works well as the bag does not have external loops. The pillow pocket is not really for me. The included stuff sac is fine and weighed 100g, but will mostly get left at home. The storage sack is nice and lets the bag get good loft and protects from dirt. The sleeping bag itself weighed in at 720g.
The only reason I didn't give it 5 stars is because I have not used the bag long term and cannot attest to its longevity. All in all, I would recommend this to anyone looking for a new bag since you get a high-end product without the high-end price tag.

5 5

850 fill paradise

This bag amazed my dad and friends camping that were all using synthetic bags. I was a little surprised myself when I felt how light it was in the stuff sack. Compressed down it gets to about the size of a double nest deluxe eno hammock. Pure awesome!

5 5


  • Gender: Male
  • Familiarity: I've used it once or twice and have initial impressions

Used this with the Big Agnes Air Core pad at 9000 feet. The low was 29 degrees, and I stayed warm all night.

What is it's size in a stuff sack?

What is it's size in a stuff sack?

What does this bag weigh?

What does this bag weigh?

Best Answer

1lb 7oz in the long size. I don't have the weight for the regular.

Unanswered Question

what is inside shoulder circumference of...

what is inside shoulder circumference of Reg and Long ?

5 5

Great bag for three season use.

Just got back from a five day, 100 mile trip through northern Arizona. Temperatures got near freezing most nights, and I was still comfortable on the coldest night. I was roasting at 45 degrees in this thing, which I'll take over cold any day. The fit was roomy for a mummy type bag, and I was impressed with how warm the footbox stayed. It warmed up within seconds if I curled up and it got cold, and I never noticed any cold spots. The light weight was a amazing, this bag provides an amazing heat to weight ratio, and packs down to smaller than a soccer ball. For a lightweight warm to cool temperature bag I couldn't ask for anything else.

5 5

Amazing Roomy Lite Bag for Price!!!

Regular is longer than most 6-0" bags probably fit up to 6-3". I am just over 6'-0", 220 lbs, 46"chest I usually have to get long bags but there is lots of width and length in the Somnus 30.
I would never use the included stuff/compression sack 3.5 oz, waste of time. The bag does compresses very small, it easily fit in a #3 5L granite gear stuff sack. It weighed in at 26 oz. on my scale. Slightly heavier than expected for regular but the bag is very lofty, roomy, and very warm. It appears about three or four times thicker than my Big agnes pitch pine 40 degree, and two times as lofty as the Mont bell Spiral UL 30. The monte bell is a long and this bag is only 2-3 inches shorter. This Stoic Somnus has a zippered insulated pocket in the foot box. I'm assuming is for gear that needs to stay warm. It is not a foot vent as i had hoped. I has size 12 feet and the foot box is roomier than most bags i have tried. This bag moves well. I can roll inside it if im not using the hood and it rolls nicely with me when using the hood. I sleep warm but believe I would be comfy into the upper teens based on loft and comfort at 30 degrees without using the hood. Another Great Product by Stoic. Everything I have owned from Stoic has been great. I only wish it had a Goat on it!

Note the Hood is the best fitting hood i've ever used fits perfect under my chin and snug around face without feeling claustrophobic. I usually do not like hoods cinched up but Stoic has it dialed in.

4 5

Great bag, great buy, one caveat.

This is a big, comfy bag, and an amazing deal for the quality. Having used the Marmot Plasma series, I feel that vertical baffles move with you better, esp. for restless side sleepers. Shoulder girth is excellent, on par with WM Megalite or Kodiak; I have a 46" chest and broad shoulders and this bag is non-confining. The hood, however, is a mess; the cinch cord is unfinished and drawing the hood tight leaves 10" or so of pretensioned cord which tends to either tickle or slap you in the face all night. If this doesn't bother you, it's an unbeatable deal. I really hope backcountry refines the hood cord on the next iteration.

What is the fill weight of the 850 down?

What is the fill weight of the 850 down?

Is 1lb 4oz for the regular? If so what is...

Is 1lb 4oz for the regular? If so what is the Long's weight? Thanks

My scale said 26 oz (1lb. 10oz) no stuff sack for regular. I tested two of the same bags.

Is this thing really as long as it says...

Is this thing really as long as it says (TWSS)?

Specs say 82 inches. That's longer than most long bags. Will a regular length version of this thing actually work for a guy who is 6'2"?

I'm pretty sure this is a typo. Stoics website says a maximum user height of 6'6", which would be 78". The regular must be 72" and the long 78".

How much does this weigh?

How much does this weigh?

Arrived today. 26.2 OZ\1lb 10.2 oz w/o stuff sack. The "do not remove this tag"is the only added weight. If we give the tags a generous .2oz we are still at 1lb 10oz. Not happy that BC can't provide a weight; especially with the advent in light and ultralight backpacking.

My scale said 26 oz (1lb. 10oz) no stuff sack for regular. Stuff sac was 3.5 oz. I tested two of the same bags.

Weight? Stuff bag size?

Weight? Stuff bag size?

Unanswered Question

Is this bag EN rated and how much does it...

Is this bag EN rated and how much does it weigh?