---
product_id: 701156848
title: "Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model"
brand: "kelty"
price: "C$28820"
currency: NIO
in_stock: true
reviews_count: 5
category: "Kelty"
url: https://www.desertcart.ni/products/701156848-kelty-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers
store_origin: NI
region: Nicaragua
---

# 550 Fill Power Down Recycled Shell & Liner ISO Limit 21°F / Extreme -11°F Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model

**Brand:** kelty
**Price:** C$28820
**Availability:** ✅ In Stock

## Summary

> 🛶 Sleep Green, Dream Warm: The Cosmic 20 is your eco-backpacking essential!

## Quick Answers

- **What is this?** Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model by kelty
- **How much does it cost?** C$28820 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/701156848-kelty-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers)

## Best For

- kelty enthusiasts

## Why This Product

- Trusted kelty brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Chic Performance:** Crafted from recycled nylon and polyester with PFAS-free durable water repellent—camp sustainably without sacrificing style.
- • **Lightweight & Packable:** At just 2 lbs 6 oz and compressible to a 13x7 inch stuff sack, it’s the perfect companion for minimalist backpackers.
- • **Tailored for Trailblazers:** Available in three sizes with a natural-fit footbox and trapezoidal baffle design for superior heat retention and comfort.
- • **Ethical Warmth, Zero Compromise:** 550 fill power down with 100% traceable, RDS-certified insulation keeps you cozy and conscious.
- • **Trusted Heritage, Modern Innovation:** Designed in Colorado since 1952, Kelty blends decades of expertise with cutting-edge eco-friendly materials.

## Overview

The Kelty Cosmic 20 is a 3-season mummy sleeping bag featuring 550 fill power ethically sourced down, a recycled nylon and polyester shell with PFAS-free DWR, and a heat-retentive trapezoidal baffle design. Lightweight and highly compressible, it offers sizes for sleepers up to 6'6" and is rated for temperatures down to -11°F, making it a sustainable, high-performance choice for backpackers and campers.

## Description

Remember the trapezoid from high school geometry? Turns out, this funky ol' shape is ideal for helping sleeping bags retain heat. Our trapezoidal baffle construction is just one of the reasons the Cosmic Down is still our favorite three-season superstar. We also love the expanded natural-fit footbox for happier feet, zippered stash pocket and fully recycled fabrics and PFAS-free DWR treatment. The Cosmic Down is the total package.

Review: I bought the Kelty Cosmic Down 20 for fall backpacking trips and so far it has totally exceeded expectations. It kept me warm in temps down to the high 20s °F with just a base layer and a decent sleeping pad. The down insulation lofts up nicely, and I really like the hood and draft collar features—little things that make a big difference on cold nights. It packs down smaller than I expected (fits in my 50L pack with room to spare), and for the price, this is probably one of the best value down bags out there. It's not ultralight, but it's light enough for most weekend or multi-day hikes. Only downside is the mummy shape is a bit snug if you toss and turn. But the footbox has enough space and I still slept comfortably. Highly recommend for 3-season use if you want warmth and quality without breaking the bank.
Review: Looking for a reliable and comfy sleeping bag that won't break the bank? Look no further than the Kelty Cosmic 20°! This down-filled wonder has been my trusty companion on countless camping trips, and I'm here to tell you why it deserves a spot in your backpack. Warmth you can count on: 550 fill power down: Lofty and toasty, this bag kept me snug as a bug in a rug even on chilly fall nights. Trapezoidal baffles: These clever pockets keep the down evenly distributed, preventing cold spots and maximizing warmth. Comfort that lulls you to sleep: Spacious interior: I never felt constricted, even tossing and turning like a human pretzel. Soft lining: The fabric is gentle against your skin, making it a pleasure to drift off to sleep. Natural-fit footbox: No more cramped toes! This roomy design lets you wiggle your feet freely for ultimate comfort. Lightweight and packable: Compresses down small: Easily stashed in my pack, leaving plenty of room for other gear. Durable ripstop nylon shell: Tough enough to handle the wilderness without weighing you down. A few things to consider: True to its 20° rating: While I was comfy down to the mid-40s, it might not be warm enough for true winter camping. No bells and whistles: This is a basic bag, so if you need features like a draft collar or integrated pillow, you might want to look elsewhere. Overall, the Kelty Cosmic 20° is a fantastic value for the price. It's warm, comfortable, and packs down small, making it a great choice for three-season adventurers. If you're on a budget or just starting out, this bag is a sure winner. Happy camping! I hope this short review helps you decide if the Kelty Cosmic 20° is the right sleeping bag for you. Sweet dreams!

## Features

- A KELTY CLASSIC: The cosmic 20 has long been a staple of Kelty’s backpacking lineup and a favorite of campers worldwide with 550 FP compressible down, silky soft fabrics, dual direction zippers, the cosmic is built for comfort at the campsite
- PFAS FREE AS IT SHOULD BE: None of that toxic stuff here – Recycled nylon and polyester taffeta shell and liner fabrics to keep even more out of the landfill, finished with durable water repellent. Planet Earth approved
- SUSTAINABLE + TRACEABLE DOWN: Did we mention all our down is 100% ethically sourced and traceable via RDS? Info on product tag to trace each specific batch of down, Kelty means business when it comes to sustainability.
- 1952: Since Eisenhower was in the oval, Kelty has been designing camping gear in sunny Colorado. A founding member of The Conservation Alliance, Kelty continues to lead the industry with quality gear for your outdoor shenanigans on or off the trail
- THE DEETS: Each size up represents additional 6” of total length: Short fits sleepers up to 5’ 6”, Regular 6’, Long 6’ 6”. ISO limit rating 21 degrees, ISO extreme rating -11 degrees. Total weight about 2 lbs. 6 oz. (regular) stuffed size 13 x 7”

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age Range | Adult |
| Color | Deep Teal |
| Size | Regular |
| Style | Updated Version |
| insulation-material-type | Down |
| Shape | Mummy |
| Material Type | Polyester Nylon |
| Maximum Height Recommendation | 72 Inches |
| Number of Items | 1 |
| Outer Material | Recycled 20D Nylon Taffeta |
| Season | 3 Seasons |
| Features | RDS Certified Down, Highly Compressible and Lightweight, Recycled Shell + Liner Fabrics |
| Sport | Camping & Hiking, Backpacking |
| Included Components | Kelty Cosmic 20 Sleeping Bag, Kelty Limited Lifetime Warranty, Stuff Sack |
| Batteries Included? | No |
| Brand | Kelty |
| fill material type | Down |
| Department | Unisex |
| Manufacturer | Kelty |
| Item model number | Kelty |
| Product Dimensions | 198.12 x 76.2 x 7.62 cm; 1.16 kg |
| ASIN | B0CSPKCJZK |

## Product Details

- **Brand:** Kelty
- **Colour:** Deep Teal
- **Occupancy:** 1 Person
- **Shape:** Mummy
- **Seasons:** 3 Seasons

## Images

![Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 1](https://m.media-amazon.com/images/I/51tiHd10hnL.jpg)
![Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 2](https://m.media-amazon.com/images/I/618+2iinn4L.jpg)
![Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 3](https://m.media-amazon.com/images/I/71mSOGtZVsL.jpg)
![Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 4](https://m.media-amazon.com/images/I/71JnpvKQNJL.jpg)
![Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 5](https://m.media-amazon.com/images/I/71NZgIQE92L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***P on 21 October 2025*

I bought the Kelty Cosmic Down 20 for fall backpacking trips and so far it has totally exceeded expectations. It kept me warm in temps down to the high 20s °F with just a base layer and a decent sleeping pad. The down insulation lofts up nicely, and I really like the hood and draft collar features—little things that make a big difference on cold nights. It packs down smaller than I expected (fits in my 50L pack with room to spare), and for the price, this is probably one of the best value down bags out there. It's not ultralight, but it's light enough for most weekend or multi-day hikes. Only downside is the mummy shape is a bit snug if you toss and turn. But the footbox has enough space and I still slept comfortably. Highly recommend for 3-season use if you want warmth and quality without breaking the bank.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 20 December 2023*

Looking for a reliable and comfy sleeping bag that won't break the bank? Look no further than the Kelty Cosmic 20°! This down-filled wonder has been my trusty companion on countless camping trips, and I'm here to tell you why it deserves a spot in your backpack. Warmth you can count on: 550 fill power down: Lofty and toasty, this bag kept me snug as a bug in a rug even on chilly fall nights. Trapezoidal baffles: These clever pockets keep the down evenly distributed, preventing cold spots and maximizing warmth. Comfort that lulls you to sleep: Spacious interior: I never felt constricted, even tossing and turning like a human pretzel. Soft lining: The fabric is gentle against your skin, making it a pleasure to drift off to sleep. Natural-fit footbox: No more cramped toes! This roomy design lets you wiggle your feet freely for ultimate comfort. Lightweight and packable: Compresses down small: Easily stashed in my pack, leaving plenty of room for other gear. Durable ripstop nylon shell: Tough enough to handle the wilderness without weighing you down. A few things to consider: True to its 20° rating: While I was comfy down to the mid-40s, it might not be warm enough for true winter camping. No bells and whistles: This is a basic bag, so if you need features like a draft collar or integrated pillow, you might want to look elsewhere. Overall, the Kelty Cosmic 20° is a fantastic value for the price. It's warm, comfortable, and packs down small, making it a great choice for three-season adventurers. If you're on a budget or just starting out, this bag is a sure winner. Happy camping! I hope this short review helps you decide if the Kelty Cosmic 20° is the right sleeping bag for you. Sweet dreams!

### ⭐⭐⭐⭐⭐ Review
*by A***N on 16 July 2021*

When planning for a backpacking trip I needed something more compact. My previous mummy bag was synthetic, 30 degree rated, and took up too much room in my pack. Did some research and this was smaller, lighter, rated 10 degrees warmer, and fit my budget. Down packs incredibly easy, I’ve come to find out, so packing it away is so much easier than synthetics. The bag itself is very comfortable. I appreciate the two way zipper with the option of opening from the bottom. This bag kept me very warm (granted it was only low 40s on my first use). Built in hood was also very warm and comfy, actually made my inflatable pillow more bearable too. Recommended product.

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-10*