Big Agnes King Solomon 15 Degree Sleeping Bag

Priced: $399.94 - $449.95 Rated:   - 5 stars out of 5 by 30 reviews.
Big Agnes King Solomon 15 Degree Sleeping Bag
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Big Agnes King Solomon 15 Degree Sleeping Bag -

The Big Agnes King Solomon Double Wide Sleeping Bag is for couples who want to share sleeping bags, but also want the ability to backpack without filling their entire pack. The light, packable King Solomon 15 Sleeping bag uses two 20" x 72" pads and is filled with 600 fill goose down which allows the bag to be compressed to an acceptable 10x21 inches. At only 5 lb 7 oz, the King Solomon is lighter than two comparable bags packed separately and eliminates some of the hassle that comes along with zipping your bags together. Like all Big Agnes Sleeping Bags, the King Solomon has a pad sleeve on the bottom that fits two 20x72 pads. We recommend the Big Agnes Insulated Air Core Pads for maximum comfort. For an even bigger double bag, check out the Big Agnes Dream Island!


  • Dual zippers make entry and exit a breeze for both people; dual draft collars prevent cold air from sneaking into the bag on either side
  • Draft collar for each person keeps cold air from sneaking in around the neck


  • Nylon Microfiber rip-stop fabric
  • Interior fabric loops for sleeping bag liners
  • Features center no-draft flap. Fabric piece with Velcro closures on the center gives you the option to attach the top of the body of the bag to the center of the hood to eliminate more drafts when you move in your sleep
  • Insotect Flow Construction uses vertically oriented baffles to control distribution of insulation so as to eliminate cold spots
  • Ripstop nylon microfiber shell features a Durable Water Repellent finish causing moisture to bead up and roll off; soft, downproof nylon lining resists stains
  • Comes with a stuff sack and cotton storage bag
  • Integrated pillow pockets let you create makeshift pillows from spare fleece jackets or other soft gear


  • King Solomon, Big Creek, Cabin Creek and Dream Island: Rectangular shaped bags with integrated fill pad sleeve design
  • No-draft wedge insulates the connection between the bag and pad
  • Underside insulation has been eliminated and replaced with sleeves for 2 72 x 20 in. pads (sold separately)
  • Integrated sleeping pad sleeves keep you from rolling off your pad at night


  • Water-resistant coating protects the down insulation from condensation, frost, and water-bottle spills
  • Included 10-by-21-inch stuff sack compresses down to 10-by-10 inches
  • No-draft zipper tube insulates along length of zippers.
  • High-quality 600-fill-power goose down is warm, lightweight and compressible
  • The 600-fill down keeps the bag lightweight and ultra-warm during chilly nights outside
  • Big Agnes sleeping bags leave out bottom insulation both to save weight and because down compressed by your body weight loses virtually all of its insulating value
  • Down-proof ripstop nylon shell and lining stand up to abuse and prevent the down insulation from poking through

Weather and Wind:

  • Zippers on each side allow easy access for both sleepers; draft tubes back zippers to prevent warm air from escaping and cold air from entering


  • Extra 2" / 5 cm of Length in Foot Box: King Solomon, Big Creek and Cabin Creek
  • Extra 2" of length in the foot box helps accommodate up to 6' 2"


  • Built-in pillow pocket for each person lets you stuff a jacket or a pillow inside


  • Exterior loops for hang drying or storage
  • Double wide bag designed for two people
  • Internal loops allow attachment of a sleeping bag liner, sold separately
Backcountry Edge

Built especially for couples, the Big Agnes King Solomon 15 Degree Double-Wide sleeping bag is extra-roomy and extra-comfortable. Insulated with lightweight and compressible 600-fill goose down, the King Solomon 15 Degree Double-Wide sleeping bag packs down smaller than most double wide bags, making it an option for backpacking or for family and car camping.

FEATURES of the Big Agnes King Solomon 15 Degree Sleeping Bag.
SPECIFICATIONS of the Big Agnes King Solomon 15 Degree Sleeping Bag.
Sleep like royalty inside the two-person Big Agnes King Solomon Sleeping Bag. This dual-person 15-degree down sleeping bag features enough room for two happy campers to snuggle up at night and tell bedtime stories with happy endings.


Offering the same great features as a single Big Agnes sleeping bag, the spacious King Solomon +15°F double bag is designed to sleep 2 people comfortably.


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Average Price History: Price History
Review RatingNumber of Reviews
Activity:Family & car camping
Bag Weight:5 lbs 8 oz / 2495 g
Capacity:2 Person
Compressed Dimension:11 x 12" / 28 x 30 cm
Fill:600-fill goose down
Fill Material:600 Fill Goose
Fill Type:600 Down
Fill Weight:49 oz / 1389 g
Fit up to:6'2" / 188 cm
Fits to Girth:110"
Fits to Length:78"
Fits up to (in.):74 inches
Hip girth (in.):96 inches
Insulation:600 Fill Goose Down
Insulation Type:600+ Down Insulation
Item Weight:5 lb. 3 oz.
Liner Material:300T Nylon
Lining:Soft, breathable down proof nylon with stain resistant finish
Material:Down proof, nylon microfiber rip-stop
Max User Height:6 ft 0 in (Regular)
Note:bag requires two 20-inch-wide rectangular sleeping pads to be fully insulated (sleeping pads available separately)
Other:Storage and Stuff Sacks Included
Packed Size:10" x 21"
Pad Size:2-20 x 72" / 51 x 183 cm
Pad sleeve:Nylon rip-stop. WR surface treatment to repel water
Recommended Use:3-Season Backpacking or Camping
Saddle Mountain SL:Mummy shaped bag with two half pad sleeves
Shell:Down proof, nylon microfiber rip-stop. WR surface treatment to repel water
Shell Material:IJT3 Down Proof, Nylon Microfiber Ripstop
Shoulder Girth:110 in
Shoulder girth (in.):110 inches
Sleeping bag shape:Double
Stuff Sack Dimension:(XXL)
Stuff sack size:10 x 21 inches
Stuff sack volume:27 liters
Temperature Range:11° to 20°
Temperature Rating:15° F / -9° C
Temperature rating (C):-9 degrees Celsius
Temperature rating (F):15 degrees Fahrenheit
Upc, Ean, Isbn:873840002912
Weight:5 lbs. 3 oz.
Weight - metric:2.44 kilograms
Word to the wise:sleeping pad coupler straps (available separately) help prevent the sleeping pads from inching apart during the night
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Big Agnes

Big Agnes King Solomon 15 Degree Sleeping Bag Reviews:

Positive Reviews:

Best night of sleep with my wife EVER!

Oh Big Agnes, how I love thee!

My wife and I had been eying this bag for quite a while before it was given to us as a wedding gift. After taking it out I have to say it was the best night of sleep I have had with my wife in the back country yet! We had always zipped our mummy bags together in the past but whenever you moved in the middle of the night you would always get tangled up in them. Not in the KS! You can toss and turn and it feels just like your bed at home with a down comforter over you. We also notice that our Big Agnes pads didnt make as much noise in the KS when you moved around on them. Here is the key points of this sleeping bag:

-Roomy, I am 6'4 and while my long pad sticks out of the top of the sleeping bag I still have enough room because I can lay diagnoley.
-Packs simple, One takes the tent, one takes the sleeping bag.
-Big Agnes pad in bag design, creates for no more sliding off the pad nights
-Cozy, if you like to cozy up next to your partner to stay warm in the outside this is the perfect bag for you.
-Light weight, the bag weighs around 5 lbs which if we were both bringing in a sleeping bag together they would be about the same.
Price- If you think about it, you are getting TWO down bags for the price, a steal of a deal if you think of it that way.

Things you should know:
- Cold spots, there is a lot of room on the inside of the bag so cold spots form easily.
-Big opening, Because the opening at the top is designed for 2 people it is significantly bigger and while it does synch down there is still a lot of room for warmth to escape. Dress accordingly and this should not be an issue.
-Pack size, this bag is 2 bags in one and it packs that way. Even in a compression sack it still only gets to be about as small as the small bear canisters and takes up every inch of the bottom of a bag. Only becomes an issue with overnight packs.
-Storage sack. BA did not make an extra large storage sack for this while it is not being used so it barely fits into their normal single bad storage sacks.
-Really cold nights, this bag is probably not the most ideal bag if you are going to be getting into weather below freezing because of the lack of the ability to capture all your body heat.

All in all I LOVE this bag and would recommend it to anyone that enjoys backpack or camping with their significant other.
CSUfan at REI on 05/05/2011

Just got home from a month long self contained bike tour in Montana and Canada, and couldn't wait to provide a rating on the King Solomon. This bag is fabulous! Because we carried it on a bike, we might be a bit more flexible about the size than a backpacker, but you can't complain about the weight, basically the weight of two single 15 degree bags, maybe a tad more. One of us carried the sleeping bag and the other the tent. It's not just great to cuddle, it's great because you can move and spread out more, curl your legs up, encroach your legs into the other side territory. We experienced down to 37 degree temp and it was fine, but colder than that and I'd recommend sleeping in long underwear. I'm not sure it would be pleasant at 15 degrees, but suspect it would be fine at 30 or so if you just had long sleeves on or something. My husband stuffed his jacket in the pillow pocket, making it easy to find in the morning. We used thermarest pads which fit perfectly, but other campers told me that Big Agnes pads provide more cushioning, I'm unfamiliar with them. This bag is so well made and clever, the zipper doesn't stick, the top of the bag has scallops to come up around your neck for warmth, you can easily start the night with it unzipped and zip up when it turns colder, it's just the most comfortable sleeping bag I could imagine! We carried it in an ortlieb waterproof bag on the back rack of touring bikes, although it would have fit into a back pannier if we didn't have so much stuff with us.

ang3536346 at on 08/07/2010

Worth the Money!

After looking at the other options for a two person bag with a decent comfort rating (15-30F) and considering weight and interior space... this was the best one, though pricey. Totally worth it!The hood adjust with two separate toggles; one for the top of the hood and one for the bottom. The footbox is slightly smaller than the shoulders, thus reducing the likelihood of chilly toes. The footbox is extra lofty.The mats slide in on the underside and close with a flap that secures with velcro. The zipper is reinforced to make it snag resistant. So the zipper will snag on a more durable fabric than ripstop. No holes with fluff flying out!The bag itself is lofty! It has especially great loft around the head. It's roomier than I expected. It's about the size of a full size bed.The bottom is slightly bigger than two sleep mats. The top has a lot of extra room making it easy to roll around and get comfy. Think "D" shaped.It has two extra handy features, built in pillow pockets and a kind of u-shaped flap at the neck to block out cold spots for each sleeper. It comes with a cotton storage stack and a smaller ripstop stuff sack. It packs down to about the size of two loaves of bread with some minor compression. All in all-Great bag! Super comfy and nice and light for a two person bag. More comfortable than zipping two bags together! Totally impressed! My only complaint is that it's slightly smaller than the dream island model (though that bag weighs twice as much!). This is one of those pricey items for which I have no regrets!
hikes with dogs at REI on 05/05/2009

Big Agnes King Solomon Makes Sense

On the recommendation of a friend my wife and picked this up at the anniversary sale this year and the Big Agnes King Solomon is, hands down, the best sleeping bag purchase we have made. It is an amazing piece of kit that every couple should have. The Big Agnes theory of not filling the back side with down is genius, because think about it, you are already carrying a sleeping mat anyway and the fact that you can eaisly access the mat air valve is a wonderful feature because you can adjust the air pressure without getting out of the bag. The zipper pulls are big and easy to grab especially when you are trying to regulate heat if you or you significant other is too hot. The hood, "cold cuffs" and pillow insert all worked above expectation and my Wife and I did not feel cramped, which is awesome because, I'm a big dude and need my space. With the use of a large compression sack you can pack it down to almost half the size of the supplied stuff sack. As for weight, well, it is about two sleeping bags worth of material so to off-set this we took some gear out of my pack and put in my wife's pack to compensate. We both stayed warm all night with out any issues whatsoever. Very comfortable and cozy! If you are in the market for new sleeping bags seriously consider this bag it won't disappoint.
J_D at REI on 07/07/2010

Wow. This thing rocks. It's warm and comfortable and packs really small considering 2 people can use it. Very light and perfect for a backpacking couple that can't tolerate sleeping in separate cocoons. It's light not because of skimping on down, but because (like other BigA bags) there is no down on the bottom where you don't need it - the pad keeps you warm. Having this double-bag means one less object to put in your packs (1 sleeping bag instead of 2) and there is no meaningful weight penalty (weighs right around what 2 individual bags weigh). My sig-o has bad knees, so this helps us cover more ground because she doesn't have to carry a bag. She's also addicted to cuddling, but that's another story that is outside of the scope of this review.Construction is typical Big Agnes - high quality all the way around (materials, assembly, design), no cutting corners. Has under-the-head-sleeves that can be stuffed with whatever you got to make pillows. Has removable neck gaiters for when it's really cold. We are currently using the size Small Thermarest Ridge Rest pads, but it would be better to have the Regular size if you want the pad to cover all the way down to your feet. Comes with a compression sack and a big cotton storage sack; there are no hidden costs here.Truly one of our favorite pieces of gear that we own.

King J the Magnificent at on 03/25/2010

Finally warm!

I was finally warm for the first time ever while camping! We've only used this once, but slept through a freezing downpour. I had no idea how cold it was outside until I got out of this sleeping bag. I am a small female who tends to get cold easily and my husband is always hot, and he surprisingly was not too hot in this bag. I'm so happy being cold does not have to be a part of camping anymore. The bag is obviously bigger than a regular one person bag, but if you were taking it backpacking you are only taking one bag for 2 people, which is actually lighter than lugging 2 separate bags. We did have to buy one more sleeping pad in order to have matching sleeping pads, but we needed one anyway. 1 bag, 2 people...less is more! I love it! ***and I am finally warm!*** If your wife or girlfriend is always cold, get this bag! (Oh and we got the non-down one first as a gift, but exchanged it and paid the extra for the down...VERY WORTH the extra money.) I figure we will have it for a very very long time, and just after one camping trip I am so glad we spent the extra money and got the down bag...down lays so nice over your body and the temp control is unbeatable. :)
oceans and mountains at REI on 08/08/2011

This bag is ridiculously spacious, and if you have good sleeping pads, you won't miss your bed. It's a tad bulky; I've taken it backpacking before and it works if comfort is your priority for that trip. I usually use a Gregory Z55 and the bag needs to be stored vertically in the pack instead of stuffing it down horizontally into the sleeping bag spot. That being said, it is probably the only two person bag you could viably take backpacking, which is pretty sweet. It has two pillow pockets - hardly a necessity but the GF loves them. REI basecamp pillows or Medium Therm-a-rest compressible ones fit great.
I do not think it lives up to its temperature rating. Both of us started getting chilly in the mid 30's using Therm-a-rest Traillite and Basecamp pads. The Basecamp pad is pretty thick and warm (R-value 5), so I don't think warmth issues were related to inadequate underside insulation and are instead a shortfall of the bag. I have also used 78 inch inflatable mummy pads inside the bag's pad sleeves - they work fine and just stick out the top a little. Fits perfectly in a large Sea to Summit Event compression sack.

Alex L at on 04/29/2010

Great Double Bag- Need to purchase pads!

Bought this bag after using the NF Twin Peaks +20 bag and found that it compacted much smaller with a compression sack (not included). I also prefer Down- it was slightly lighter-so the Big Agnes works great for that. It is a great bag- roomy enough for two.

The ONLY downside to this double bag is that it does require sleeping pads.. Took it to the Olympic Coast along the beach and had no issues with it- however it was used on sand (no pads). When in the cascades, it was much colder as we didnt have the sleeping pads to insert into the sleeves- This is a MUST- it wasnt that cold over night yet because there is NO insulation on the bottom of the bag- you need to use pads. The pad sleeves are nice and accomodate two separate sleeping pads. I used sleeping pads on a trip to yellowstone and it made a 100 percent difference in the comfort of the bag.

I would highly recommend the bag- however be aware that you will need to make an additional investment - which brings the price up quite a bit!
Iron Snail at REI on 08/08/2010

Just got back from an early May road trip down the Pacific Coast Highway (northen to central California section). It was May but temps at night were down in the high 30's, low 40's. We used this bag in conjunction with the Big Agnes insulated air core pads. While we absolutely loved the featured of the bag (the neck baffles are brilliant, easily zips, packs down small and has tons of room for the two of us) we got cold. In fat, we had to position our down coats down the sides of the bad near the zippers (both of us, both sides) and we did sleep in hats and insulated underwear, with sweaters on top. I was disappointed in that aspect and had hoped this bag would have been perfect unzipped at this temp...not sure why we were having trouble in the high 30's, low 40's. We did find the bag had PLENTY of room (two women, 5'-4" each). We did not suffer from cold feet however. Great design on the pads sliding in the back, love the color and build quality. Any ideas on getting a higher temp rating out of this bag?

days-like-this at on 05/31/2011

Heavy, but performed flawlessly.

We used this bag the weekend after Christmas 2012 in the Ouachita National Forest. It was reportedly 16 degrees F overnight in Langley, AR. We hiked 9 miles and I really wished the bag were smaller and lighter, but it is what it is and is probably better suited for car camping (BA now has a superlight bag that would be better for backpacking). We utilized the bag with BA's Dual Core insulated pads. Before our trip we tested the bag on a 30F degree night in Dallas with the Insulated Air Core pads and found that they did not provide enough insulation, so I would HIGHLY recommend utilizing the Dual Core pads with this bag at temperatures below 30F. The drawback is that at 5lbs for the bag and just under 2lbs. each for the pads you've got 9 lbs. of just bedding on your back. Again, back to my conclusion, this is phenominally comfortable and warm sleep system probably best suited for car camping.
ERL-AARON at REI on 02/02/2013

Negative Reviews:

Doesn't Live Up to +15 Claims!

My wife and I recently used our Big Agnes King Solomon for what was to be a four-day backpacking trip up the West Fork of the Dosewalleps R. in Olympic NP. However, after this experience, I now have to say that my earlier enthusiasm for this bag may have been a bit premature and overly optimistic.

In a nutshell: The King Solomon is rated to 15 degrees F, but at 35 degrees F outside temp (confirmed), the bag simply didn't hold warmth. My wife and I were inside a tent with adequate ground pads and the air was still. But, even bundled up in wool leggings, socks and three tops, we both felt cold penetrating the top baffles of the bag to the point of shiver.

So, realizing that the bag wouldn't be adequate at 25-degree temps we anticipated near Anderson Pass, we decided to terminate the trip early - a major disappointment.

For the high price of this bag it seems to me that BA could use 750-or-higher rated goose down, and more of it, and perhaps thereby meet the +15 warmth claims while keeping the weight low. But they chose not to.

The King Solomon is wonderfully roomy and it does have some great design features. And as long as adequate (R5 or better) ground pads are used, it is really comfortable down to about 40 degrees F. But at 15 degrees you'd simply freeze.

I feel the manufacture is exaggerating low-end temperature ratings for this bag and, on this basis alone, I now have to rate the King Solomon unacceptable.
SJenni at REI on 07/07/2011

Neutral Reviews:

Roomy half-bag

First, a warning. This is half a bag. You get a down filled upper side and a bare nylon sleeved underside. You must buy two 72x20" sleeping pad to complete the gear.

The two sleeping pads slip into two separate sleeved pockets (his and her) that complete the underside of sleeping bag. The sleeves are great. If you move around a lot, good news, you won't slip off the pads.

There is a one or two inch gap between the two his and her pads. I was worried about this before buying but hardly noticed the gap during a four day test trip to Sequoia. There's plenty of room to maneuver.

The one-sided outter zippers are an extreme pain in the butt to close all the way. The hoods worked fine.

I'm not completely sold on the BA sleeved bag systems. I think a little bit of down on the underside would have made a more comfortable bag. Shop for sleeping pads carefully! I think the "packs small" claims are a little disingenuous without stating that the sleeping bag is useless without carrying two insulated sleeping pads.
San Diegan at REI on 05/05/2010