Sea to Summit makes 9 sleeping bags in our database, ranked below by GearScore, our data-driven overall rating. The Spark 30F leads at 85. The lightest is the Spark 45F at 12.8 oz, and the warmest is the Alpine -20F, rated about -2°F. Prices run from $349 to $984.
| Product | GearScore (Default) | Style | Fill | Comfort | Weight | W/wt | $ / warm | Packed | Fill Pwr | Price | Rating | Buy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 85 | Bag | Down | 39 °F | 17.4 oz | 6.3 /100g | $14 /warm | 4.5 L | 850 FP | $449 | Lab · ISO 23537 | |
2 | 85 | Bag | Down | 29 °F | 2 lb 4.0 oz | 4.0 /100g | $10 /warm | 7.5 L | 750 FP | $419 | ISO 23537 tested | Buy |
3 | 83 | Quilt | Down | 40 °F | 19.2 oz | 5.5 /100g | $12 /warm | 5.1 L | 850 FP | $364 | Maker rating | |
4 | 78 | Bag | Down | 37 °F | 2 lb 7.5 oz | 2.9 /100g | $11 /warm | 8.2 L | 650 FP | $364 | Lab · ISO 23537 | Buy |
5 | 77 | Bag | Down | -2 °F | 3 lb 3.0 oz | 5.0 /100g | $14 /warm | 14.0 L | 850 FP | $984 | Lab · ISO 23537 | Buy |
6 | 67 | Bag | Down | 29 °F | 25.7 oz | 5.6 /100g | $13 /warm | n/s | 850 FP | $549 | Lab · ISO 23537 | |
7 | 63 | Bag | Down | 14 °F | 2 lb 7.3 oz | 5.0 /100g | n/s | n/s | 850 FP | n/s | Lab · ISO 23537 | |
8 | 54 | Bag | Down | 52 °F | 12.8 oz | 5.0 /100g | $19 /warm | n/s | 850 FP | $349 | Lab · ISO 23537 | |
9 | 51 | Quilt | Down | 55 °F | 14.9 oz | 3.5 /100g | $24 /warm | n/s | 850 FP | $364 | Maker rating |
The Buy column links to retailers we may earn a commission from, at no extra cost to you. It never affects rankings. GearScore is the overall rating (0 to 100); re-weight it on the full comparison.
This page ranks every Sea to Summit sleeping bag we track, scored on published specs, not opinions. GearScore rewards warmth-to-weight, low weight, and packed size once a bag is warm enough for its rating. You can re-weight any of those factors, or sort and filter the whole field, on the full sleeping bag comparison.
We currently track 9 Sea to Summit sleeping bags, all ranked above by GearScore. We add models as they are released and re-verify specs by model year.
By GearScore, the Sea to Summit Spark 30F ranks first at 85. That is the default, data-weighted rating; re-weight it to your own priorities on the full comparison and the order can change.
The Sea to Summit Spark 45F at 12.8 oz, the lightest Sea to Summit sleeping bag in our data.