Sea To Summit Spark -9C sleeping bag is the perfect sleeping bag if you are counting grams, but still want to ensure a fantastic night's sleep. Filled with RDS certified 850+ fillpower goose down treated with a PFC-free Ultra-Dry Down treatment, the Spark features a technical hood and a zipper protection tube to retain heat. Comfort is guaranteed by a super breathable 10 denier inner fabric, while a 10D structure with a PFC-free DWR treatment and a highly water-repellent fabric for the hood and bottom of the bag repels wind and condensation. The full-length zip model can be paired with a corresponding Spark for women for comfort that couples can share.
Sea To Summit Spark -9C sleeping bag is the perfect sleeping bag if you are counting grams, but still want to ensure a fantastic night's sleep. Filled with RDS certified 850+ fillpower goose down treated with a PFC-free Ultra-Dry Down treatment, the Spark features a technical hood and a zipper protection tube to retain heat. Comfort is guaranteed by a super breathable 10 denier inner fabric, while a 10D structure with a PFC-free DWR treatment and a highly water-repellent fabric for the hood and bottom of the bag repels wind and condensation. The full-length zip model can be paired with a corresponding Spark for women for comfort that couples can share.
in 84 offers
Sea to Summit Spark Down Sleeping Bag
Sea To Summit Spark -9C sleeping bag is the perfect sleeping bag if you are counting grams, but still want to ensure a fantastic night's sleep. Filled with RDS certified 850+ fillpower goose down treated with a PFC-free Ultra-Dry Down treatment, the Spark features a technical hood and a zipper protection tube to retain heat. Comfort is guaranteed by a super breathable 10 denier inner fabric, while a 10D structure with a PFC-free DWR treatment and a highly water-repellent fabric for the hood and bottom of the bag repels wind and condensation. The full-length zip model can be paired with a corresponding Spark for women for comfort that couples can share.
Sea To Summit Spark -9C sleeping bag is the perfect sleeping bag if you are counting grams, but still want to ensure a fantastic night's sleep. Filled with RDS certified 850+ fillpower goose down treated with a PFC-free Ultra-Dry Down treatment, the Spark features a technical hood and a zipper protection tube to retain heat. Comfort is guaranteed by a super breathable 10 denier inner fabric, while a 10D structure with a PFC-free DWR treatment and a highly water-repellent fabric for the hood and bottom of the bag repels wind and condensation. The full-length zip model can be paired with a corresponding Spark for women for comfort that couples can share.
The lowest price for Sea to Summit Spark Down Sleeping Bag right now is $679.90 at Snowys Outdoors, compared across 28 retailers.
The all-time low was $594.99 on 9 Dec 2025 — today's price is 14% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 25 Oct 2026.
Last updated at 25/10/2026 08:33:36
Sea to Summit Spark Down Sleeping Bag -9C|15F - Long
Free delivery between Tue – Fri
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Free delivery
Sea To Summit Spark -9c/15f Down Sleeping Bag - Long
Free delivery
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Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Delivery between 28 Oct – 5 Nov $10
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Free delivery
Sea To Summit Spark Down -9c Sleeping Bag Long Black
Free delivery between Tue – Thu
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Free delivery between Wed – Sat
Sea to Summit Spark Ultralight Sleeping Bag, -9, Long
Delivery $32.19
Sea To Summit Spark -9C Down Sleeping Bag Long
Free delivery between Mon – Tue
Sea to Summit Spark -9°C / 15°F Ultra Dry Down Sleeping Bag (Long Mummy) - Grey / Yellow
Free delivery between 28 Oct – 4 Nov
| Color | Beluga Black |
| Temperature Rating | 15°F |
| Closure Type | Zipper |
| Pattern Type | Solid |
| Size | Long, Double, Regular |
Sea to Summit Spark Down Sleeping Bag -9C|15F - Long
Free delivery between Tue – Fri
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Free delivery
Sea To Summit Spark -9c/15f Down Sleeping Bag - Long
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Delivery between 28 Oct – 5 Nov $10
Sea to Summit Spark -9C/15F Down Sleeping Bag - Long
Free delivery
| Color | Beluga Black |
| Temperature Rating | 15°F |
| Closure Type | Zipper |
| Pattern Type | Solid |
| Size | Long, Double, Regular |
