Sea to Summit Spark -9ºC Down Sleeping Bag - Regular
All about this product
General
The Sea to Summit Spark -9ºC Down Sleeping Bag has been designed for adventurers who demand minimal weight and compact pack size without sacrificing warmth or comfort. Enhanced ergonomics, including a more technical hood, rugged and easy-to-use zippers, and a water-resistant hood and foot box, set a new standard for lightweight sleeping bag performance. With a mummy fit that’s snug yet allows enough room to move, the Spark keeps you comfortable while optimising thermal efficiency in cold conditions.
Filled with 850+ loft, RDS-certified goose down treated with a PFAS-free Ultra-Dry Down finish, the Spark offers reliable warmth and water resistance in damp conditions. The lightweight, breathable, and durable nylon shell and lining, combined with a water-resistant hood and foot box, help shed tent wall condensation. A standard front draft collar and ergonomically shaped hood retain warmth, while vertical chest baffles prevent lateral down shift as you move in your sleep.
Perfect for fast-and-light trekking, winter camping, or any backcountry adventure, this 3.5-season sleeping bag delivers ultralight performance, exceptional warmth, and the freedom to explore in comfort.
Technical details
Backpacking, mountaineering, camping
Materials:
Shell: 10-Denier nylon with PFC-free DWR finish
Lining: 10-Denier nylon
Insulation: 850+ fill power RDS-certified goose down, PFAS-free finish
Hood and foot box: 10-Denier nylon
Compression sack: 40-Denier nylon
Key features:
Hood fits Sea to Summit regular and Aeros Ultralight pillows
Single, down-filled, draft tube along the top of all zippers
Pairs with most Sea to Summit women’s bags for double
Zipper plough eliminates zipper slider snagging
Water resistant hood and footbox
Horizontal baffles in leg section
Box wall baffle construction
Standard front draft collar
Ergonomic mummy shape
3/4 length primary zip
Technical hood shape
Vertical chest baffles
3.5-season rating
Lightweight
Breathable
Tech specs:
Lower limit rating: -9ºC
Comfort: -2°C
Weight: 730g
Fill weight: 480g
Compressed volume: 6.8l
Maximum user height: 185cm
Fill power: Ultra-Dry Down 850+
Size and fit:
Size: Regular
Material
Insulation Type | Down |
Technical Features
Season rating | 3 Season |
Other features
Brand | Sea to Summit |
Product Code | G4HB3D0297 |
We use marketing, analytical and functional cookies as well as similar technologies to give you the best experience. Third parties, including social media platforms, often place tracking cookies on our site to show you personalised adverts outside of our website.
We store your cookie preferences for two years and you can edit your preferences via ‘manage cookies’ or through the cookie policy at the bottom of every page. For more information, please see our cookie policy.