Kelty - Cosmic 20 Series

I froze my ass off with the Kelty Cosmic in 2024

I have the kelty cosmic down 20 and it it fantastic. Also about half the price of the ones you mentioned.

Gnarly! Sounds like some top tier "type B" fun. Early on in backpacking, after several uncomfortable, borderline worrisome nights sleep in my 20°f Kelty bag I learned the advertised temperature ratings of sleeping bags are actually the "survival rating,", meaning you won't lose any appendages to the elements. The comfort rating is always significantly warmer than the survival rating and you often have to research equipment in advance to find thst figure. I'm PNW-based, and personally, fall-winter I use a rei magma down 15 bag & neoair xtherm pad. I might not ook like Jeremiah Johnson all bundled up but I sleep like a baby. Risking death chasing the bushcraft aesthetic in a cold, damp environment isn't worth it if you lack the ability or materials to craft an adequate sleep system.

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

If its of any interest I have a kelty cosmic 20 thats only ever been used in my roof top tent. I can send it to ya if you pay shipping. If it works for ya you can use it for the hike or ill just sell it to ya cheap. Edit to add im in wnc in Waynesville

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)

Kelly cosmic down 20f, not under 80$ tho, if your short you can get the women’s one at backcountry for like 110$.

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.

My first budget backpacking sleeping bag was a Kelty Cosmic 20. It was way heavier than I expected. A friend let me use their Naturehike Sleeping bag (not sure on specific type) and it was way lighter and more compact. I still use the Kelty for car camping, but it no longer goes on backpacking trips with me. My next upgrade will be an ultralight quilt. I got a used Gossamer Gear pack 55L off eBay that I love! I started with a Naturehike CloudUp 2 tent which was fine for the price, I have since upgraded to a Tarptent Double Rainbow (also used on eBay). Depending on the distance and weather, I will still take the Naturehike tent sometimes even though it is heavier. I like that you can use it without the rain fly on a nice night and just have the mesh top so I can see the trees and stars. My first pad was a Klymit pad from Amazon for $40. It works fine for warm weather. I upgraded to an Exped Duo 3R last year since I now usually backpack with my daughter or girlfriend and a 2P pad seemed easier. I also have two Nemo Switchback pads that I will carry on some hikes. I put them under my pad in the tent to prevent any punctures in my Exped and to give a little more insulation on colder nights. They are also great to pull out and use as a pad around camp when we are lounging before going to bed. Unfortunately, UL gear and spending an arm and leg kinda go hand in hand. All of my inexpensive gear was great to get me started, but over the last few years, I have been replacing them with lower weight, higher quality, and hence more expensive options. Along with being heavier, the cheaper stuff is just, cheaper. The biggest thing I have noticed is the zippers don't glide as easy on my cheap gear. This can be a huge annoyance when trying to zip your tent or bag.

As others have said, 80 dollars is a pretty low budget. If you want lightweight and compact you’ll probably want down, but the best budget-friendly, three-season down bag I know of is still around 180 dollars new (Kelty Cosmic 20). You might check out REI Resupply for gently used gear to get the price down a bit. Unfortunately, down is just expensive and backpacking gear in general is expensive. :-(