Kelty - Cosmic Down 0

Warmth starts from the ground up. Starting with a good thermal pad. Not all pads are designed for cold temperatures and using the wrong pad is why many people get cold. -15 degree bag should work just fine. That means if you had nothing else but a sleeping bag it would keep you warm at -15 degrees. Adding a good thermal pad will keep you warm. When buying a sleeping bag you will need to consider your height. If you are using a long sleeping bag and you are 5’10” tall, all your heat is going to the empty space below your feet. Getting a bag that fits you perfectly will help keep you warm. I hunt all over the PNW for the past 35+ years. My fall sleeping bag is 15 degrees my winter or late hunt is -15 degrees. Combined with my thermal pad I have never woken up cold. I use a SlumberJack for my 15 degree bag and I use a Marmot. REI Marmot Trestles Elite Eco 0 Sleeping Bag $209 Kelty Cosmic Down 0 Sleeping Bag. Reg $294 on sale $219. I would suggest investing in a better quality thermal pad. Therm-a-Rest NeoLoft Sleeping Pad Or NEMO Tensor All-Season Ultralight Insulated Sleeping Pad **** Best ****

I have that exact Kelty bag and I love it. I have the REI campwell pad and with the bag got down to about -10f and I was warm. I am not entirely sure about a sleeping pad in the price point that

My Kelty 0 bag, so I can wear shorts and t shirt and still be comfortable

If you're going to buy a Marmot, buy the eco version as they'll pack down much smaller....but that Cosmic's a solid pick

While it doesn't get much colder than 32F on the PNW coast, it's damn wet and windy. Last season I was suffering in my 20+ year old Sierra Designs \[synthetic fill\] so after long research I bought a Kelty Cosmic 0 Down sleeping bag for $165 \[before tax\]. It was on sale for Labor Day, but there are still end-of-summer deals out there. I'm just tent camping at parks, so weight was not an issue. I've always preferred down bags and as a retiree I need the extra warmth.

The typical weather in coastal PNW this time of year is lows in the mid 40s and I used to bring a Sierra Designs 20F synthetic bag, but with humidity at 90% and Pacific winds, it isn't comfortable. A fleece liner and extra blankets didn't make a difference so I now just bring a Kelty Cosmic 0 degree down bag.

My Kelty 0F that's not a mummy bag because I find those very annoying.

My kelty 0 bag does good but that’s gonna break your budget. Highly suggest boiling water in a tall Nalgene overnight and putting it in your bag. Makes a huge difference.

A Kelty Cosmic 0° is around $200. It’s the often mentioned low cost down bag. It will cut your weight in half.

Also have this Kelty bag and was pleased with its performance this spring. I do have the eco version of it as it was at sierra for a solid deal. With temps down in the low 40’s upper 30’s, I was warm with layers on.

I picked up a Kelty cosmic down a number of years ago. Fairly basic but it was down and a decent weight.

First - are you positive you want to zip together with your partner? I did your same plan \~15 years ago. Got 2 bags and zipped them together. It was cute. At first. Then we soon became cramped / cold. We almost always preferred to be in our own bags vs. zipped together. After the novelty of zipping together wore off - it really wasn't useful. Just saying... don't spend the extra money / effort or limit your options for this feature if you don't really need it. If you still want the zip together bags - you are looking for sleeping bags that have 'left' and 'right' zippers. Buy one left and one right. At 15F nights - you want a 5F or 0F rated sleeping bag. Or a 15F bag plus a liner for the colder nights. Are you sure you want a traditional mummy bag? I personally prefer down quilts. They pack smaller and are more comfortable than my mummy bag. They also work well when 2 people are together. Snuggle under the blankets, but then go into your own cocoon for the night time. **What is your budget?** It looks like Mountain Hardware does mens zippers on left and womens zippers on the right. * [https://www.rei.com/product/235362/mountain-hardwear-bishop-pass-15-sleeping-bag-womens](https://www.rei.com/product/235362/mountain-hardwear-bishop-pass-15-sleeping-bag-womens) * [https://www.rei.com/product/235363/mountain-hardwear-bishop-pass-15-sleeping-bag](https://www.rei.com/product/235363/mountain-hardwear-bishop-pass-15-sleeping-bag) Nemo does the same: * [https://www.rei.com/product/228439/nemo-disco-15-endless-promise-down-sleeping-bag-womens](https://www.rei.com/product/228439/nemo-disco-15-endless-promise-down-sleeping-bag-womens) * [https://www.rei.com/product/251886/nemo-disco-15-endless-promise-down-sleeping-bag-mens](https://www.rei.com/product/251886/nemo-disco-15-endless-promise-down-sleeping-bag-mens) This is a unique option too: * [https://www.rei.com/product/231206/sea-to-summit-ascent-15f-sleeping-bag](https://www.rei.com/product/231206/sea-to-summit-ascent-15f-sleeping-bag) The North Face Cat's Meow was the one I had with L/R zips. But it looks like they took that feature away. I was also going to recommend the Kelty Cosmic Down as a cheap/budget option - but they also look to only sell right zip bags.

Ouch, you are in a tough situation. You need a small sleeping bag, but have a low budget. Basically anything you buy is going to take up half your backpack. Your tent and sleeping pad will most definitely need to be strapped to the outside of your pack. 35L pack is really a limiting factor. Sure - the Nemo Disco is a fine sleeping bag. Better than the Forte for sure. The Kelty Cosmic is popular because it's cheap. If you can afford more, like the Nemo - go with that. I'd skip the 'zip together' feature. Don't limit yourself in that way. It sounds cute - but in practice joining 2 bags is not comfortable / warm. At least over the 18 years I've been with my GF. Hard to say more without knowing what brands you have a pro deal with and what temperatures you'll need to use the sleeping bag in (temp rating 15/20/30/40F?)

Can you add more specific details? You have this labeled as 'travel' - but ask about camping gear. I assume you are asking about the 'wilderness' type of backpacking - right? What is the low temps you plan to sleep in? You say no snow - but 'colder temps' - a number would help. What is your budget? Do you have $500 to spend? $5000? You say 'wreck bank account - but everyone's bank account is different size. How old are you? Man or Woman? (many packs and sleeping bags are gendered) Do you already have a good sleeping pad? This is also critical to a good / warm night sleep. Do you already have a tent? Sure - Kelty is a find budget getting started brand. They make an okay Cosmic down sleeping bag that's popular for wilderness backpacking. I wouldn't go for their backpacks really. Here are some default recommendations from Amazon: * [https://www.amazon.com/Kelty-Sleeping-Backpacking-Recycled-PFAS-free/dp/B0CSPFW5Q1](https://www.amazon.com/Kelty-Sleeping-Backpacking-Recycled-PFAS-free/dp/B0CSPFW5Q1) * [https://www.amazon.com/Osprey-Atmos-Backpacking-Backpack-X-Large/dp/B09JXQDZG5](https://www.amazon.com/Osprey-Atmos-Backpacking-Backpack-X-Large/dp/B09JXQDZG5) * [https://www.amazon.com/Therm-Rest-Original-Ultralight-Camping/dp/B00453NA1E](https://www.amazon.com/Therm-Rest-Original-Ultralight-Camping/dp/B00453NA1E) * [https://www.amazon.com/Therm-Rest-Ultralight-Backpacking-Sleeping/dp/B0CS4NHPVP](https://www.amazon.com/Therm-Rest-Ultralight-Backpacking-Sleeping/dp/B0CS4NHPVP)