Big Agnes King Solomon Sleeping Bag: 15 Degree Down

This is a great bag - the pillow holders and pad holders work great! My boyfriend and I used this in 28 degree weather and it worked great with just light pajamas on. Plenty of room inside. Our only challenge is that it is too big - we are both small people and it is about 10 inches too long and wide. We even were able to pack it into an unbelievably small stuff sack for back packing. The double zippers work great also.

I was concerned since I'm 73" tall that I wouldn't fit. It's OK, but just barely. I think 73" is the maximum height for this bag. Two 72" long, 20" wide rectangular pads are needed to slip into the bag. I may have an old one, there's no way to couple the pads, as they have separate sleeves. The sleeves do have a slight gap, but it's not an issue. Anyway the bag is great for my wife and I. It was warm down to 20 degrees F. It's a good 15 F bag for backpacking since it only weighs 42 ounces per person, and you get to sleep with your wife.

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.

The best outdoor gear investment I've made in while. Ditto all of the comments below. My girlfriend and I used it on a late winter trip in the Sierra Nevadas. The temperature rating is a bit generous, but as long as you're sharing body heat with someone else you'll stay toasty in sub-freezing temps. Not sure why more manufacturers haven't jumped on the bandwagon and developed more technical 2-person sleeping bags like this one.

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?

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.

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.

High quality product....it says to use it with rectangular mattress pads but it worked just fine with our Therma Rest Pro LIte Plus'. The temp didn't get below the mid 40's so I can't attest to the low end. However, we were plenty warm in the 40's - enough to have to unzip.
This bag is as good as everybody has stated below, but beware. My wife and I found out real fast that cuddling up is not necessarily a good thing when hoisting 40 lbs. packs all day. It sounds nice and romantic, but in reality it's pretty gross. Sometimes a little distance is a good thing when you haven't showered in a few days.....just our opinion.

This bag is awesome - very light for two people, compresses down to about 10"d x 12"h, and very comfortable with the pad sleeves. It's also a lot roomier than I expected, considering it's only slightly wider than two sleeping pads - my wife and I can sleep all night without elbowing or kicking each other at all. We've only used it down to about 40 deg, but even then we had the sides unzipped and the whole way and our shoulders out of the bag and were plenty warm.