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Big Agnes Saddle Mountain SL15 Sleeping Bag - Double

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  • DownTek™ 700-fill-power duck down repels water employing nano technology and a proprietary process to apply a micro-thin polymer to the down
  • DownTek down repels water and maintains loft and insulation value, even when exposed to moisture
  • Proprietary application process creates a water repellent, antimicrobial and antibacterial down insulation that actually floats on water
  • Pertex® nylon shell; nylon taffeta lining is soft and breathable
  • Underside insulation has been replaced with half-length sleeves for two 20-in. wide sleeping pads (sold separately); sleeves prevent the bag from slipping off the pads
  • Draft wedge insulates the connection between the bag and pad to prevent cold air from entering
  • Draft collar for each person keeps cold air from sneaking in around the neck; no-draft flap running down the inside center of the bag keeps heat compartmentalized
  • 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
  • Built-in pillow sleeves allow you to stuff jackets or backcountry pillows inside
  • Interior fabric loops stabilize a sleeping bag liner, sold separately
  • The Big Agnes Saddle Mountain SL double sleeping bag includes a nylon stuff sack and a storage bag


Item 846689

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Big Agnes Saddle Mountain SL15 Sleeping Bag - Double Specs
Best use
15 degrees Fahrenheit
-9 degrees Celsius
3 lbs. 13 oz.
1.72 kilograms
700-fill duck down
32 ounces
Nylon taffeta
72 inches
93 inches
90 inches
10 x 21 inches
27 liter
EN lower limit (rating for men)
EN comfort (rating for women)
Temperature rating (F)
Temperature rating (C)
Weight - metric
Insulation type
Fill weight
Sleeping bag shape
Fits up to (in.)
Shoulder girth (in.)
Hip girth (in.)
Stuff sack size
Stuff sack volume

Big Agnes Saddle Mountain SL15 Sleeping Bag - Double

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Rated 4.5/5 based on 2 reviews
Rated 4out of5
by fromGood choice for backpacking as a couple If you go backpacking mostly as a couple and like to cuddle also in the backcountry this might be the right choice for you. We were originally looking into buying two separate sleeping bags that could be attached to each other but then we found this double sleeping bag and decided it might be just the right thing for us. The good things are: it definitely saves you some weight to carry (although it obviously can't be split between the two of you), you don't need to fight numerous zippers while attempting to attach two sleeping bags to each other (and keeping them together throughout the night) and it keeps you fairly warm (it's actually easier to retain your heat when you share a sleeping bag). The zippers don't open by themselves while you move around in the bag which I really appreciate. What I rather dislike is the size of this double bag: especially the shoulder girth is barely sufficient for two people. My shoulders are really tiny and my SO's shoulders are a normal size for a tall man and we already have troubles fitting both of us in the bag. Two larger people are definitely gonna have a hard time. If it's warm enough you can open the zippers a little bit to get some more room but that's not what you wanna do on a cold night, right? I believe a few more inches around the shoulders would go a long way in increasing the comfort level of this otherwise very good sleeping bag. Also be careful to have a suitable sleeping pad for this bag (see the specs) since the bottom part has no filling at all - it is just a layer of fabric! It is therefore very wise to have pads that fit the large pockets underneath and thus can be attached to the bag so that you don't slide off them during the night. That would be very unpleasant I guess. We purchased compatible Big Agnes sleeping pads that are about 3 inches thick when inflated and are very happy with this choice. Thinner mats we tried didn't provide sufficient insulation and comfort.
Date published: 2013-04-24
Rated 5out of5
by fromGreat double sleeping bag! I ordered this for my wife and I to cut some weight and bulk from our bags. It packs down smaller and cuts about a pound off from carrying our two separate synthetic 30 degree bags (not to mention its rated 15 degrees colder). You will want to get a compression sack since it only comes with a stuff sack. I got a Large Sea to Summit compression sack which works perfectly. Compressed down, it fits snugly in the bottom of my wife's 65 L Osprey bag. We got to test the bag out on a 3 day backpack on the Appalachian Trail in Smoky Mountains NP. Our bag got lots of attention in the shelters. We ended up referring to it as our "luxury sleep system". Night time temperatures got as low as about 35 degrees and we were plenty warm. I would be pretty confident using this bag in colder conditions. I think it would be pretty true to its 15 degree rating (might have to put on some long underwear and warm socks though or utilize each others body heat). We didn't even get to the point of using the hood. I did love the draft collar though. We used the bag with 2 Therm-a-rest pro-lite pads. Loved the Big Agnes sleep system with the slide in pads. You couldn't even feel the divide between the 2 pads. Felt just like sleeping on one big pad. I move around a lot while sleeping and also like to sleep on my stomach and this is the perfect bag for that. Plenty of room to move around and no twisting around of the bag. There is a pocket to stuff a pillow or clothes in that is really nice too. The bag is actually roomier than I expected. I am about 5'10" and my wife is 5'3". Both pretty thin. There was enough space that we didn't necessarily have to sleep shoulder to shoulder. I would definitely highly recommend this bag for couples that backpack together frequently.
Date published: 2013-04-09

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