Top 5 zero-degree sleeping bags reviewed and ranked.
Sea to Summit Spark 0 is our top pick for 0 degree sleeping bags — an averaged 4.7/5 across 1 published review at about $599. Runner-up: Western Mountaineering Kodiak MF (~$770).
| # | Product | Rating | Price | Best for | |
|---|---|---|---|---|---|
| 1 | Sea to Summit Spark 0Top Score | 4.7 (1 source) | $599 | ultralight backpackers prioritizing pack weight | $599 · Check Price on Amazon |
| 2 | 4.9 (1 source) | $770 | winter expeditions where bag failure is unacceptable | $770 · Check Price on Amazon | |
| 3 | 4.7 (1 source) | $600 | high-altitude winter mountaineering | $600 · Check Price on Amazon | |
| 4 | 4.6 (1 source) | $520 | fast-and-light winter trips where pack weight matters | $520 · Check Price on Amazon | |
| 5 | 4.8 (1 source) | $860 | buyers who want artisan-grade hand-built quality | $860 · Check Price on Amazon |
The Spark 0 is the best-overall pick — Sea to Summit's lightweight zero-degree bag with 850 fill.
The Kodiak MF is the premium pick — Western Mountaineering's USA-made zero-degree bag, exceeds its rating.
The Phantom 0 is the expedition pick — Mountain Hardwear's bag for high-altitude winter expeditions.
The Parsec 0 is the fast-and-light pick — Therm-a-Rest's lightest zero-degree bag for speed missions.
The Ibis ES is the artisan pick — Feathered Friends' hand-built zero-degree bag with 950+ fill goose down.
| Spec | Sea to Summit Spark 0 | Western Mountaineering Kodiak MF | Mountain Hardwear Phantom 0 | Therm-a-Rest Parsec 0 | Feathered Friends Ibis ES 0 |
|---|---|---|---|---|---|
| Fill | 850 fp down | 30 oz of 850 fp down | ~2 lb of 800 fp down | 800 fp down | 950+ fp goose down |
| Weight | Ultralight | — | — | Lightest 0° | 50 oz |
| Brand | Sea to Summit | Western Mountaineering | Mountain Hardwear | Therm-a-Rest | Feathered Friends |
| Origin | — | USA | — | — | USA hand-built |