TETON Sports Celsius vs Kelty Cosmic Down 20
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- Side-by-side analysis based on real user feedback
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| Celsius | Cosmic Down 20 | |
|---|---|---|
![]() | ![]() VS | |
| Fill Type | SuperLoft Elite hollow fiber | 550-fill down |
| Weight | Junior: 45.6 oz; Large: 68.8–78.4 oz; XXL: 88–152 oz | Regular: 39 oz |
| Size | Junior: 66 × 26 in; Large: 80 × 33 in; XXL: 90 × 39 in | Regular: 78 in long |
| Shell Material | 70D/190T polyester taffeta | Recycled 20D nylon taffeta |
| Compression Sack | Included | Included; Regular: 8 × 13 in |
| Warranty | Limited lifetime | Limited lifetime |
| Lining Material | 75D polyester flannel | Recycled 50D polyester taffeta |
| Baffle Construction | Offset-stitch double layer | Trapezoidal baffles |
| Color | Variant-specific | Not specified |
| Draft Tubes | Full-length shoulder and zipper draft tubes | Full draft tube and collar |
| Fill Power | Not applicable - synthetic fill | 550 fill |
| Foot Box | Rectangular | Natural-fit footbox |
| TETON Sports Celsius | Kelty Cosmic Down 20 |
|---|---|
![]() | ![]() |
| Fill Type | |
SuperLoft Elite hollow fiber | 550-fill down |
| Weight | |
Junior: 45.6 oz; Large: 68.8–78.4 oz; XXL: 88–152 oz | Regular: 39 oz |
| Size | |
Junior: 66 × 26 in; Large: 80 × 33 in; XXL: 90 × 39 in | Regular: 78 in long |
| Shell Material | |
70D/190T polyester taffeta | Recycled 20D nylon taffeta |
| Compression Sack | |
Included | Included; Regular: 8 × 13 in |
| Warranty | |
Limited lifetime | Limited lifetime |
| Lining Material | |
75D polyester flannel | Recycled 50D polyester taffeta |
| Baffle Construction | |
Offset-stitch double layer | Trapezoidal baffles |
| Color | |
Variant-specific | Not specified |
| Draft Tubes | |
Full-length shoulder and zipper draft tubes | Full draft tube and collar |
| Fill Power | |
Not applicable - synthetic fill | 550 fill |
| Foot Box | |
Rectangular | Natural-fit footbox |
Comfort
Celsius
Cosmic Down 20
Comfort is a crucial aspect of a sleeping bag, as it directly affects the quality of sleep. Both the TETON Sports Celsius and Kelty Cosmic Down 20 have received praise for their comfort, with the Celsius boasting a soft and fluffy interior. However, the Cosmic Down 20 has a slightly higher comfort rating, indicating that it might be the better choice for those who prioritize a restful night's sleep. The tie in this category suggests that both sleeping bags are comfortable, but the Cosmic Down 20 has a slight edge.
Durability
Celsius
Cosmic Down 20
Durability is essential for a sleeping bag, as it needs to withstand various weather conditions and frequent use. The Kelty Cosmic Down 20 has a higher durability rating, indicating that it is more resistant to wear and tear. This makes it a better choice for those who plan to use their sleeping bag frequently or in harsh environments. The Celsius, on the other hand, may not be as durable, but it still offers great value for its price.
Warmth
Celsius
Cosmic Down 20
Warmth is a critical factor in a sleeping bag, especially for those who camp in cold weather. Both the TETON Sports Celsius and Kelty Cosmic Down 20 have received praise for their warmth, with the Celsius exceling in keeping users cozy even in subzero conditions. The tie in this category suggests that both sleeping bags are warm, but the Cosmic Down 20 has a slightly higher warmth rating.
Packability
Celsius
Cosmic Down 20
Packability is an important consideration for backpackers, as a sleeping bag that is too bulky can be a hindrance on the trail. The Kelty Cosmic Down 20 has a higher packability rating, indicating that it is more compact and lightweight. This makes it a better choice for those who need to carry their sleeping bag long distances. The Celsius, on the other hand, is less ideal for backpacking trips due to its bulkiness.
Ease Of Use
Celsius
Cosmic Down 20
Ease of use is a factor to consider when choosing a sleeping bag, as some bags may be more complicated to set up or use than others. Both the TETON Sports Celsius and Kelty Cosmic Down 20 have similar ease of use ratings, indicating that they are both relatively easy to use. However, the lack of detailed feedback in this category makes it difficult to declare a clear winner.
Versatility
Celsius
Cosmic Down 20
Versatility is an important consideration for those who plan to use their sleeping bag in different environments or for different activities. Both the TETON Sports Celsius and Kelty Cosmic Down 20 have similar versatility ratings, indicating that they are both relatively versatile. However, the lack of detailed feedback in this category makes it difficult to declare a clear winner.
Trust & Transparency
- Data-driven rankings from real user reviews
- Affiliate partnerships don't influence our methodology
We may earn commission from links.
Conclusion & Final Verdict:
In conclusion, the TETON Sports Celsius and Kelty Cosmic Down 20 are both high-quality sleeping bags that cater to different needs. The Celsius is ideal for car camping or cabin sleeping due to its warmth and comfort, while the Cosmic Down 20 is better suited for backpacking trips due to its packability and durability. Ultimately, the choice between these two sleeping bags depends on your specific needs and preferences. If you prioritize warmth and comfort, the Celsius may be the better choice. However, if you need a sleeping bag that is lightweight and compact, the Cosmic Down 20 is the way to go.
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The OneTigris Trailnap offers better versatility and packability, while the TETON Sports Celsius excels in warmth. Choose the Trailnap for diverse activities and the Celsius for cold weather comfort.
TETON Sports CelsiusvsMarmot Trestles Elite Eco 20° Long
Marmot Trestles Elite Eco 20° Long wins for comfort, warmth, and packability, while TETON Sports Celsius offers budget warmth but is bulkier. Choose Marmot for versatility, Celsius for cozy cold-weather car camping.
TETON Sports CelsiusvsREI Co-op Siesta Hooded 20 Sleeping Bag
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TETON Sports Celsius excels in cold-weather warmth; Sierra Designs Frontcountry Bed 20 wins for packability and ease. Choose Celsius for winter, Frontcountry for mild trips.
TETON Sports CelsiusvsTETON Sports Altos Down 0°F
TETON Celsius excels in warmth and comfort for cold-weather car camping, while Altos Down 0°F packs smaller for backpackers. Choose Celsius for coziness, Altos for portability.
TETON Sports CelsiusvsTETON Sports Tracker 5°F Mummy
The TETON Sports Celsius and Tracker 5°F Mummy sleeping bags differ in warmth, with the Celsius suited for colder conditions and the Tracker 5°F Mummy better for three-season use. Choose the Celsius for extreme cold or the Tracker 5°F Mummy for versatility.

