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Sea To Summit Spark Sleeping Bag 7 deg. C Regular

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£309.04
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£309.04

Sea To Summit Spark Sleeping Bag 7 deg. C Regular

Lightweight down sleeping bag made of nylon fabric, filled with goose down. Regular version with a total length of 196 cm, suitable for users up to approximately 185 cm tall. Mummy-shaped model with optimized ergonomics and excellent heat retention while providing space for a natural sleeping position. When compressed it occupies about 2.4 liters, which is important when minimizing gear space during trekking or travel.

Temperature ratings and usage conditions

The temperature ratings for the Sea To Summit Spark Regular sleeping bag, in accordance with standard EN 13537:

  • T-comfort: +11 deg. C – the minimum temperature at which a woman can sleep comfortably throughout the night,
  • T-limit: +7 deg. C – the lowest temperature at which a man can sleep through the night without feeling discomfort.

durable nylon material, DWR coating

The sleeping bag is made of an ultralight 10-denier nylon fabric used both in the outer shell and lining. The outer layer is coated with a PFAS-free DWR treatment, increasing resistance to moisture and limiting the penetration of vapor or light precipitation. This helps protect the insulation from moisture, which is crucial for maintaining the thermal performance of the down.

850+ goose down insulation with Ultra-Dry Down treatment

High-quality 850+ cuin goose down provides an excellent warmth-to-weight ratio. High loft means that a small amount of down creates a large volume of insulating air, resulting in efficient insulation with minimal sleeping bag weight.

The down is treated with Ultra-Dry Down, a hydrophobic process that reduces moisture absorption and speeds up drying. This technology maintains insulating performance even in humid conditions without negatively affecting breathability or durability.

The down used is certified according to the RDS - Responsible Down Standard, confirming that it is sourced with animal welfare and full supply chain traceability.

YKK zipper, compression sack

The sleeping bag features a YKK zipper with a zipper plow system that minimizes the risk of fabric snagging and ensures smooth operation even with very thin fabrics. It is also compatible with the QuiltLock system for attaching a compatible quilt. The model additionally features a technical hood and a thermal zipper draft tube that protects against heat loss. Transport is made easier thanks to the included compression sack.

Set elements

  • Sea To Summit Spark Sleeping Bag 7 deg. C Regular
  • compression sack

Main features

  • ultra-lightweight construction weighing 363 g
  • 850+ cuin goose down insulation with Ultra-Dry Down waterproofing
  • shell and lining made from breathable 10D nylon
  • PFAS-free DWR waterproofing for increased resistance to moisture and condensation
  • ergonomic mummy shape
  • YKK zip with anti-snag system
  • temperature range: T-limit 7 deg. C, T-comfort 11 deg. C
Sea To Summit


MILITARY is a premium dealer of Sea to Summit.


Sea to Summit is an Australian brand born out of a genuine passion for pushing boundaries – both physical and mental. Its name commemorates the extraordinary expedition of Tim Macartney-Snape, who was the first person to climb Mount Everest starting from sea level. This unique journey inspired the company's philosophy: to create equipment that is ready for any challenge and supports the most ambitious outdoor goals. Since the early 1990s, the brand has been providing lightweight, durable, and innovative solutions for travelers, mountaineers, kayakers, and nature lovers. Sea to Summit is also an example of a conscious approach to the environment—the company uses recycled materials and is actively involved in sustainable development initiatives.

More Information
Weight 363
Color/camouflage Multicolor
Dimensions when unfolded 196 x 155 cm
Dimensions when folded 20 x 12 cm
Main color Gray
Secondary color Yellow
Main material nylon
Fill Goose down
Sleeping bag joining option Yes
Sleeping bag zipper side Left
Sleeping bag type Mummy
T-comfort 11 deg. C
T-limit 7 deg. C
EAN 9327868150656
Manufacturer code ASL0410727/UNI/R
Brand Sea To Summit
DWR feature
DWR

DWR (Durable Water Repellency) is a durable waterproofing treatment that increases the surface tension of water and creates a hydrophobic coating on materials. It protects the material from rapid soaking, improves drying, provides stain resistance and increases breathability.

YKK zippers feature
YKK zippers

YKK zippers are high-quality zippers commonly used in clothing and accessories, manufactured by the Japanese YKK Corporation - one of the world's largest zipper manufacturers.

RDS (Responsible Down Standard) feature
RDS (Responsible Down Standard)
RDS (Responsible Down Standard) certification is a voluntary standard designed to ensure humane treatment of ducks and geese in the down and feather supply chain. The certification ensures that down and feathers come from birds raised in accordance with animal welfare principles, eliminating practices such as live shearing and force-feeding. The standard covers the entire production process, from breeding to processing, ensuring full traceability of the materials. For a product to carry the RDS label, it must contain 100% certified down and feathers.
Ultra-Dry Down feature
Ultra-Dry Down
Ultra-Dry Down is a technology used in down sleeping bag fill for enhanced performance in humid environments. A special hydrophobic coating reduces moisture absorption, allowing the down to retain its insulating properties even in higher humidity. Compared to traditional down, it dries up to 60% faster, retaining heat more effectively and improving thermal comfort in demanding conditions.

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