Kelty Cosmic Sleeping Bag
Best versatile down bag for budget minded backpackers.
This mummy-style bag balances warmth and packability for shoulder-season adventures. The efficient baffle design and water-resistant finish ensure comfort during unpredictable nights in the backcountry.
$128.97
at
Steep and Cheap
More Cosmic options
Who it's for
- Budget-conscious backpackers seeking reliable warmth without overspending.
- Side sleepers and campers who prioritize a soft, non-restrictive feel.
- Hikers needing to maximize internal storage space in their packs.
Who should skip it
- Ultralight purists counting every ounce for long-distance thru-hiking.
- Cold sleepers who frequently camp in sub-freezing alpine conditions.
- Campers who get frustrated by finicky hardware during late-night exits.
Performance breakdown
Thermal Efficiency
Trapezoidal baffles and draft tubes effectively trap heat for shoulder-season warmth.
Packability
Down insulation compresses well, though the weight adds some bulk.
Moisture Resistance
Water-resistant finish handles light dew but struggles in heavy, sustained rain.
Sleep Comfort
The spacious foot box prevents that restrictive, claustrophobic mummy bag feeling.
Weight-to-Warmth Ratio
Solid warmth for the price, though heavier than premium ultralight alternatives.
Feature Utility
Thoughtful additions like the internal stash pocket enhance overall campsite convenience.
Key Specs
Material
20D 400T nylon shell, 50D 300T polyester liner
Insulation
550-fill duck down
Shape
Mummy
Zipper
Full-length
Max User Height
68 inches
Temperature Rating
20 degrees Fahrenheit
Weight
3.94 lbs
Water Resistant
Yes
Has Stash Pocket
Yes
Know before you buy
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Ask Metto anything about the Kelty Cosmic Sleeping Bag before you decide.