Spark Sleeping Bag: 30F Down - Women's
Size:
Quantity
Only 2 In stock
Join Summit Club+ and earn $44.90 cash back!
Why We Like The Sea To Summit 30 Down Spark Sleeping Bag
For ultralight backpackers, adventure bikepackers, and everyday campers, the Spark 30 Down Sleeping Bag is here to provide a comfy night's sleep in a super lightweight package. Sea to Summit stuffed it with 850+ fill power goose down for the best possible warmth-to-weight ratio while also keeping us cozy in temps down to 30°F, and gave it an Ultra Dry Down treatment that maximizes thermal performance even when wet. The ultra-light, breathable 10D nylon shell and lining shed even more weight while adding durability, while the full hood and anatomic footbox wrap around the head and feet, respectively, without the claustrophobic feel of other ultra-light bags.
Details
- Ultra-light, warm, and compact sleeping bag for backpacking
- Contoured mummy shape delivers comfort and efficient insulation
- 850+ fill goose down insulates even in wet conditions
- Lightweight 10D nylon fabric is durable and breathable
- Women's specific fit offers a more natural sleeping position
- Hood and footbox retain heat and block out cold temps
- Stuff sack compresses down small for easy packing
- Item #STSZ0AD
- Responsible Collection
- Responsibly Sourced
- Material
- 10D nylon
- Insulation
- Ultra-Dry Down 850+ fill power
- Shape
- mummy
- Zipper
- 1/2-length, 2-way
- Max User Height
- [regular] 66.9in, [long] 72.8in
- Shoulder Circumference
- [regular] 55.9in, [long]59.8in
- Hip Circumference
- [regular] 52in , [long] 55.9in
- Foot Circumference
- [regular] 36.2in, [long] 40.2in
- Bag Length
- [regular] 66.9in, [long] 72.8in
- Draft Tube
- single, down-filled
- Fill Weight
- [regular] 13.2oz, [long] 15.2oz
- Degree
- 30F
- European Norm/ISO Comfort Rating
- 30F
- European Norm/ISO Lower Limit Rating
- 19F
- Stuff Sack
- included
- Stuff Size
- [regular] 5L , [long] 8L
- Claimed Weight
- [regular] 1lb 4oz, [long] 1lb 6oz
- Activity
- backpacking, camping
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 35 ratings
Review Summary
Customer Images
Here's what customers have to say
Here is the refined product review summary: The sleeping bag offers exceptional warmth and comfort, with down insulation keeping users cozy even in cold temperatures. It is lightweight, compact, and well-constructed, making it ideal for backpacking and camping. The versatile sizing accommodates a range of body types. Overall, this is a high-quality sleeping solution for outdoor enthusiasts.
AI-generated from the text of customer reviews.
View
Selecting an option will reload the available reviews on the pageOctober 28, 2025
Warm and Compact
[This review was collected as part of a promotion.] Love this bag, I should have spent the money years ago on a bag of this quality instead of trying to save money on a 650 FP bag. It's light, compresses well, and has been super comfortable to sleep in.
Originally reviewed on Sea to Summit
June 19, 2025
Spark Women's Down Sleeping Bag- 15
[This review was collected as part of a promotion.] I was tried of being cold on camping trip, so I pulled the trigger and bought the Spark bag. I love it!!! I'm 5'4" and went with the regular size bag and when I got it it felt short. I returned for the long and I am so glad I did. This bag is so soft, comfortable, and warm. It packs down but I wish it was a little smaller.
Originally reviewed on Sea to Summit
March 23, 2025
Terrible policy for un arrived packages
Order got lost or stolen and I never got a refund or chance to test the product. Maybe it’s a great sleeping bag, but customer service didn’t help me so I will never know.
October 8, 2024
Warm and packable sleeping bag!
[This review was collected as part of a promotion.] I was pleasantly surprised when I purchased this new sleeping bag - looking for a new down bag, packable, and would keep me warm through the cold Montana nights in Glacier National Park. I found the perfect fit - I have taken it on a few backpacking trips now and look forward to taking it out on more next summer!
Originally reviewed on Sea to Summit
October 3, 2024
I brought this bag on
[This review was collected as part of a promotion.] I brought this bag on the Camino de Santiago. It gave me plenty of warmth when the temperatures dropped down to 40F without making me feel overheated in warmer temps. I only wish that the zipper extended down further. It was lightweight and easy to compress and carry in my 24L backpack. I highly recommend this bag.
Originally reviewed on Sea to Summit
August 9, 2024
Incredible bag
[This review was collected as part of a promotion.] I love this sleeping bag, super warm, great loft, and incredibly packable. I have't tested it out below 25 degrees yet but even at 30 I can't zip cause I'm too warm (and I'm usually a cold sleeper!). I switched from a Big Agnes 0 degree womens bag to this one and have been blown away by everything. And I really appreciate that the bag comes with a compression sack!
Originally reviewed on Sea to Summit
June 7, 2024
Works great
[This review was collected as part of a promotion.] I love my down sleeping bag from sea to summit. The bag is so soft and comfortable. It fit my body perfectly. The material feels pretty durable. I love the colors.
Originally reviewed on influenster.com
June 6, 2024
Perfect sleeping bag for backpacking
[This review was collected as part of a promotion.] The Summit Spark Down women’s sleeping bag Is incredibly light so great for a backpacking trip. There just enough insulation to give a bit of padding and comfort. I am just over 5 ft and it fits great with some room to spare. I will say that if it is not cool out and you are a warm sleeper then it does get a bit toasty but it is super easy to use the zipper to get some air. I have not yet tried it in super cold temps but am looking forward to it as our entire family loves to camp.
Originally reviewed on influenster.com
June 6, 2024
Light and easy to travel with!
[This review was collected as part of a promotion.] I love this sleeping bag! It is so light and easy to pack! I haven’t used it in extreme cold temps but it was enough to keep me toasty warm on a 40 degree night. I would recommend this to anyone!
Originally reviewed on influenster.com
June 5, 2024
The Perfect Sleeping bag!
[This review was collected as part of a promotion.] This is the perfect sleeping bag! It is also the nicest, softest, lightest, sleeping bag I have ever used. It is seriously so light I can hold it up with the tip of my pinky. This would be a great choice for backpacking because it is so light. It also will keep you very warm on cold nights. I love the color scheme too! All around the perfect bag for me!
Originally reviewed on influenster.com
Do you have a question about this product?
Related Searches
Sea to Summit Spark Women's Sleeping Bag 30FUltralight Down Sleeping Bag for WomenBest Women's Sleeping Bag for BackpackingCompact Down Sleeping Bag for Adventure30 Degree Women's Sleeping Bag with Goose DownDurable 10D Nylon Women's Sleeping BagWomen's Mummy Sleeping Bag for Cold WeatherLightweight Sleeping Bag with Ultra Dry DownComfortable Sleeping Bag for Women BackpackersWomen's Specific Fit Sleeping Bag for CampingSea to Summit 30F Down Sleeping Bag ReviewHigh Fill Power Down Sleeping Bag for WomenLearn more about Spark Sleeping Bag: 30F Down - Women's