Sea to Summit Spark Down Long 15°F Sleeping Bag

About This Item

Temp Rating

15 to 30 Degrees

Insulation Type

Down

The Spark Pro has been optimized for comfort, versatility and light weight. Our highest-lofting down - 950+ fillpower RDS-certified goose down with a non-PFC Ultra-Dry Down treatment - is wrapped in extremely breathable 10D fabrics. The Free-Flow Zip system ensures maximum ventilation and the flexibility to open the bag flat as a quilt. Zip a Spark Pro to a Women's Spark and share the comfort with your companion.

DESIGN & DETAILS:

  • RDS-certified, 950+ fillpower goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
  • Featherweight 10D nylon shell with non-PFC DWR, and a highly breathable 10D nylon liner for enhanced comfort
  • Free-flow zip system, YKK #5 side zipper with zipper plow for reliable, snag-free operation. YKK #3 footbox and shoulder zipper for minimal additional weight
  • Technical hood, anatomical footbox and an ergonomic mummy shape-ultralight doesn't have to mean ultratight
  • Front draft collar is fitted around the neck and oversized at the shoulders to retain warmth
  • Hybrid box baffles in torso/sewn through in leg area (-1°C|30°F) or full box baffles for maximum warmth (-9°C|15°F)

TECHNOLOGY:

  • Ultra-Dry Down™ uses a non-PFC hydrophobic treatment to ensure it absorbs less moisture and dries more quickly
  • Brand : Sea to Summit
  • Country of Origin : Imported
  • Web ID: 24S2SUSPRKDWNSLPNCSLA
  • SKU: 26092943

REVIEWS

4.8

58 Reviews

Received incentive

In Progress

I got this as a dual purpose bag. First, an ultra light / ultra compact summer bag. Second, to pair with a 25 degree quilt for winter camping. Tried it once in a fire lookout and was too warm (ditched the quilt). Going to put it through its paces over the next year!

Received incentive

Finally A Cold-weather Bag That Fits A Big Guy (And A Side Sleeper)

I’m 6'4", about 240 lbs—built more like an aging NFL linebacker than a thru-hiker—and this bag actually fits. Plenty of room to move without cold spots, which matters if you’re a side sleeper like me. It’s warm, comfortable, and feels thoughtfully designed rather than scaled up as an afterthought. Build quality is excellent across the board, and both the storage bag and compression sack are noticeably higher quality than what usually gets tossed in. If you’re bigger, move around in your sleep, and still want real 0-degree performance, this bag delivers.

Received incentive

Best Sleeping Bag.

I tried this sleeping bag all the way down to 5°F with layered clothing, and it did fantastic. Super comfortable. I highly recommend.

Received incentive

Excellent Quality, Warm And Comfortable1

I've used the Sea to Summit Spark 30 on a few trial runs and am impressed with the quality of the bag, compression sack and storage bag! The sleeping bag has been warm and comfortable and packs well. I'm an avid hiker/thru hiker and this bag is a great addition to my gear closet!!!

Received incentive

Great Bag, Too Small .

Great bag, too small . Insulation fantastic and so light!

Read All Reviews (58)