or sign up for availability notification
Sea To Summit Spark Sleeping Bag 7 deg. C Regular
Ultralight down sleeping bag, crafted from nylon fabric and insulated with goose down. The regular size has an overall length of 196 cm, designed for users up to approximately 185 cm in height. Mummy-shaped profile enhances ergonomic support and thermal efficiency, while still allowing ample room for a comfortable, natural sleep position. Once packed, it compresses down to roughly 2.4 liters in volume, making it highly space-efficient for trekking and travel gear.
Temperature ratings and usage conditions
The Fjord Nansesn Svalbard sleeping bag temperature specifications are established according to EN 13537 standards:
- T-comfort: +4 deg. C – designates the lowest temperature at which a woman can rest comfortably throughout the night.
- T-limit: -1 deg. C – identifies the minimum temperature at which a man can sleep uninterrupted and without discomfort.
- T-extreme: -13 deg. C – defines the lowest limit for survival inside the sleeping bag; standard use under these conditions is strongly discouraged.
durable nylon material, DWR coating
The construction of the sleeping bag incorporates ultra-light nylon fabric with a 10 denier thickness for both the shell and the inner lining. The outer surface is further treated with a PFAS-free DWR coating, which boosts resistance to moisture and minimizes the intrusion of condensation or light rainfall. This added protection ensures that the insulation remains shielded from dampness—an essential factor in preserving the thermal efficiency of the down filling.
850+ goose down fill with Ultra-Dry Down coating
Outstanding thermal performance is achieved thanks to premium 850+ cuin loft goose down, delivering an exceptional warmth-to-weight ratio. Owing to its high loft, even a modest quantity of down generates a significant insulating air layer, ensuring maximum heat retention with minimal sleeping bag mass.
Additionally, the down is enhanced with Ultra-Dry Down treatment, a hydrophobic technology that significantly reduces moisture uptake and speeds up drying time. Such innovation enables preservation of insulating capabilities in high humidity environments, all while maintaining optimal breathability and durability.
The down material carries RDS - Responsible Down Standard certification, guaranteeing adherence to animal welfare guidelines and full transparency throughout the supply chain.
YKK zipper, compression sack
Equipped with a YKK zipper featuring a zipper plow system, the sleeping bag reduces the likelihood of snagging the fabric and guarantees reliable performance, even with extremely lightweight materials. Compatibility with the QuiltLock system enables secure attachment of a matching travel quilt. Additional features include a technical hood and an insulated strip running alongside the zipper to inhibit heat loss. For convenient transport, a compression sack is included. The sleeping bag is compatible with the QuiltLock system, allowing attachment of a properly fitted travel quilt.
Set elements
- Premium natural duck down insulation
- Water-repellent (WR) finish
- Enhanced durability via Rip-Stop fabric
- Comfort temperature: +4 deg. C; Lower limit: -1 deg. C
- Protective windproof flap
- H-shaped baffle construction
- Anti-Bite zipper guard system
- Adjustable footbox with drawcord closure
- Duo elastic retention straps
- Integrated internal pocket
- Durable SBS zipper hardware
Main features
BlackOut Bedroom technology delivers up to 99% reduction in bedroom light, making it possible to enjoy uninterrupted sleep after sunrise. The advanced fabric construction decreases the interior temperature by as much as 5 deg. C during daylight hours, while at night it preserves warmth—maintaining up to 1 deg. C higher temperature than the outside environment. Such innovation guarantees consistent sleep comfort, no matter the hour.
Militaria.pl 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 refers to the expedition of Tim Macartney-Snape, who was the first person to climb Mount Everest, starting his journey at sea level. This extreme journey became a symbol of the brand's philosophy: to create equipment capable of meeting any challenge and supporting the achievement of even the most ambitious goals in the outdoor world. Since the early 1990s, Sea to Summit has been providing innovative, ultra-lightweight, and reliable equipment for travelers, climbers, kayakers, and all outdoor enthusiasts. It is also a responsible brand, committed to sustainable development, using recycled materials, and actively supporting environmental protection efforts.
| 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 |
| EAN |
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 are high-quality zippers commonly used in clothing and accessories, manufactured by the Japanese YKK Corporation - one of the world's largest zipper manufacturers.