Kelty Cosmic 20°F vs TETON Sports Celsius 0°F
Quick verdict
Only one available on Amazon
The TETON Sports Celsius 0°F was out of stock on Amazon at our last check. Check the Kelty Cosmic 20°F listing before buying.
Kelty Cosmic 20°F: Tall sleepers (to 6 ft 6 in) wanting a light down bag for cool nights.
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TETON Sports Celsius 0°F Sleeping Bag
amazon.com price: ~$35(last checked Jan 30)
Currently unavailable on Amazon
See in-stock alternativesKelty Cosmic 20°F review
Best for: Tall sleepers (to 6 ft 6 in) wanting a light down bag for cool nights
A light 550-fill down mummy in Long; the 20°F name tracks its ISO limit of 21°F, while its ISO comfort is 31°F, so treat it as a three-season bag.
Amazon opens this listing on the Long Cosmic Down 20: 550-fill Kelty DriDown in trapezoidal baffles, two locking zipper sliders with an anti-snag draft tube and an inside stash pocket. REI lists ISO comfort 31°F and lower limit 21°F, so 20°F is a limit-style number. The listing pairs a 2021 part number with a '2024 Model' title, so check the size and year before you buy.
Good
- 550-fill down at 2 lb 11 oz in the Long size
- Dual locking zipper sliders; the foot unzips to vent
- 84 in Long length fits sleepers up to 6 ft 6 in
Watch for
- 20°F is near the ISO limit, not comfort: ISO comfort is 31°F
- Mummy cut (30 in wide) is snug next to a rectangular camp bag
Specs from Amazon.com listing, REI product page and Kelty product page, checked Oct 26. We compare published specs and design; we have not tested it ourselves.
Check price on AmazonTETON Sports Celsius 0°F review
Best for: One sleeper car camping on cold nights who wants room and a hood
A heavy, flannel-lined hooded rectangle for cold car-camping nights; TETON calls 0°F a survival rating and puts comfort at 25-30°F.
TETON's Celsius Regular 0°F (-18°C) is an 80 x 33 in rectangular bag with a mummy-style hood, SuperLoft Elite hollow-fiber fill, a flannel liner, zipper and shoulder draft tubes and a compression sack. TETON says 0°F is a survival rating and lists comfort at 25-30°F. At 6.66 lb it is for the car, not the trail.
Good
- Hood plus shoulder and zipper draft tubes on a roomy rectangular cut
- Soft polyester flannel liner and a two-way full-length zipper
- Ships with a compression sack; packs to 16.75 x 11.25 x 11.25 in
Watch for
- 6.66 lb and bulky even when compressed
- 0°F is a survival figure; TETON's own comfort range is 25-30°F
Specs from TETON product page and Amazon.com listing, checked Oct 26. We compare published specs and design; we have not tested it ourselves.
Currently unavailable on Amazon
See in-stock alternativesSide-by-side
| Spec | Kelty Cosmic 20°F Sleeping Bag | TETON Sports Celsius 0°F Sleeping Bag |
|---|---|---|
| Price (typical) | $55 (last checked Jan 30) | $35 (last checked Jan 30) |
| Temperature rating | 20°F | 0°F |
| Comfort rating | 31°F | not listed |
| Lower limit | 21°F | not listed |
| Weight | 2.69 lb | 6.66 lb |
| Fill | 550-fill-power Kelty DriDown | SuperLoft Elite single-channel hollow fiber (synthetic) |
| Shape | mummy | hooded rectangle |
| Size | 84 x 30 in | 80 x 33 in |
| Fits sleepers | up to 6 ft 6 in | not listed |
| Packed size | not listed | 16.75 x 11.25 x 11.25 in |
| Fits pad sleeve | no | no |
Green marks the better figure where more (or less) is plainly better. Weights and ice claims are the makers’ own figures.
Common questions
Which one should I buy?
The TETON Sports Celsius 0°F was out of stock on Amazon at our last check. Check the Kelty Cosmic 20°F listing before buying.
Where do these specs come from?
From each maker’s product page and retailer spec sheets, linked under each review. We compare published specs and design; we have not tested these products. Check the listing for the exact version you are buying.
Where do these prices come from?
These are recorded Amazon prices. Check the listings for current price and availability.
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