Kelty Cosmic 20 Sleeping Bag vs Western Mountaineering Megalite Sleeping Bag
Verdict: The Western Mountaineering Megalite wins for serious backpackers due to its 1 lb 8 oz weight and 850+ fill power versus the Kelty's heavier build and 550 fill. The Kelty Cosmic 20 provides solid value at $190 with a warmer 20°F rating and recycled materials. Megalite's 12-denier ripstop nylon shell adds breathability advantages over the Kelty's recycled construction per the provided specs.
Winner: Western Mountaineering Megalite Sleeping Bag
Kelty Cosmic 20 Sleeping Bag: 6.5/10
Western Mountaineering Megalite Sleeping Bag: 8.5/10
Spec-by-spec comparison
| Kelty Cosmic 20 Sleeping Bag | Western Mountaineering Megalite Sleeping Bag | |
|---|---|---|
| temperature_rating | 20°F | 30°F |
| fill_power | 550 | 850+ |
| weight | — | 1 lb 8 oz |
| shell_material | recycled materials | 12-denier ripstop nylon |
Kelty Cosmic 20 Sleeping Bag
What works
- Lower price point at $190 MSRP
- Warmer 20°F temperature rating
What doesn't
- Lower 550 fill power down
- Heavier construction than ultralight options
Western Mountaineering Megalite Sleeping Bag
What works
- Ultralight 1 lb 8 oz total weight
- Premium 850+ fill power goose down
What doesn't
- Higher $595 MSRP
- Warmer 30°F rating limits use in colder conditions
Bottom line
Our pick: Western Mountaineering Megalite Sleeping Bag.
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