Sea to Summit Spark Sleeping Bag
Best ultralight insulation for female backpackers seeking maximum warmth and packability.
This ultralight bag balances minimal pack weight with high-performance thermal efficiency. The tailored fit accommodates natural movement, making it an ideal choice for backcountry travelers who need reliable warmth without the bulk.
$549.99
More Spark options
Sea to Summit Spark Sleeping Bag
$349.00
Sea to Summit Spark Sleeping Bag
$349.00
Sea to Summit Spark Pro Sleeping Bag
$549.00
Sea to Summit Spark Sleeping Bag
$322.00
Sea to Summit Spark Pro Sleeping Bag
$549.00
Sea to Summit Spark Pro Sleeping Bag
$688.95
Sea to Summit Spark Sleeping Bag
$999.00
Sea to Summit Spark Sleeping Bag
$579.00
Sea to Summit Spark Sleeping Bag
$323.00
Sea to Summit Spark Sleeping Bag
$349.00
Sea to Summit Spark Sleeping Bag
$579.00
Sea to Summit Spark Sleeping Bag
$579.00
Sea to Summit Spark
$549.00
Sea to Summit Spark Sleeping Bag
$579.00
Who it's for
- Ultralight backpackers prioritizing minimal weight and pack volume
- Women who tend to sleep cold and need targeted warmth
- Serious trekkers facing variable weather and demanding mountain environments
Who should skip it
- Active sleepers who require more room to toss and turn
- Rugged adventurers who are hard on their gear in rough terrain
- Budget-conscious campers looking for a more affordable entry-level option
Key Specs
Temperature Rating
30°F
Insulation Type
850+ Fill Power Goose Down
Shell Material
10D Nylon
Lining Material
10D Nylon
Zipper Location
Full-length
Water Resistant
Yes
Sleeping Bag Shape
Mummy
Fill Power
850+ cubic inches per ounce
Still have a question?
Ask Metto anything about the Sea to Summit Spark Sleeping Bag before you decide.
