Sea to Summit Spark Sleeping Bag
Best ultralight insulation for weight conscious backpackers and minimalist hikers.
This ultralight sleeping bag is engineered for those who demand minimal pack weight without sacrificing thermal efficiency. By utilizing high-loft down and a tailored fit, it provides a superior warmth-to-weight ratio that makes long-distance trekking significantly more comfortable.
$349.00
at
Sea to Summit
More Spark options
Who it's for
- Ultralight backpackers prioritizing minimal pack weight for long-distance treks.
- Fast-and-light hikers needing to maximize internal pack volume.
- Alpine climbers facing unpredictable weather and condensation in small tents.
Who should skip it
- Budget-conscious campers seeking a more affordable entry-level sleeping setup.
- Active sleepers who feel claustrophobic in traditional narrow mummy bags.
- Rugged adventurers who frequently sleep directly on the ground.
Performance breakdown
Packability
Compresses down to a tiny footprint, saving precious space in your pack.
Weight Efficiency
Featherlight construction makes this an elite choice for long-distance thru-hiking.
Thermal Efficiency
High-loft down and tailored fit maximize warmth for its weight class.
Moisture Management
Breathable liner and DWR shell handle condensation well in humid environments.
Ergonomic Fit
Women-specific shaping eliminates cold spots and improves overall sleeping comfort.
Feature Set
Minimalist design prioritizes weight savings over extra creature comforts like pockets.
Key Specs
Weight
0.84 lbs
Compressed Volume
2.9 liters
Temperature Rating
45 degrees Fahrenheit
Insulation Type
850+ fillpower goose down
Shell Material
10D nylon
Lining Material
10D nylon
Zipper Location
Half-Zipper
Water Resistant
Yes
Has Draft Collar
Yes
Has Stash Pocket
No
Know before you buy
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Ask Metto anything about the Sea to Summit Spark Sleeping Bag before you decide.