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Naturehike

Naturehike 0 Degree RDS Down Mummy Sleeping Bag for Adults 650 Fill Power Cold Weather Backpacking Sleeping Bag

4.7(20)
$159.99
sizeS

1778+ bought in the past month

About this item

  • Nylon
  • Imported
  • NOTE: The SP400 does not have a U Neck Collar or windshield strip, the SP550 has one windshield strip, and the SP1000 has two. ISO Comfort Temperature Rating: 29°F Limit Temperature Rating: 18°F
  • PREMIUM RDS&IDS CERTIFIED DOWN: The new 2025 Snowbird model sleeping bags are made from traceable down and certified by RDS Professional. Each item's label can be scanned to track the origin of the down. Selected high quality 650 fluffy duck down with 85% down content and fill weights of 400/ 550/ 1000 grams respectively, and tested by IDS in the USA
  • WARMER PROFESSIONAL DESIGN: Thickening of the three-dimensional wind barrier can effectively prevent cold spots caused by zip gap. The design of wind blocking strip can be tightly wrapped by blocking the convection with external cold lips around the cap. U Neck Collar for better neck warmth. Internal pocket for cell phone and other small items to prevent frostbite. Everything is designed to maximize your heat retention
  • C-SHAPED WRAPPED DESIGN: The sleeping bag adopts C-shaped wrapping design, U-shaped cap cover, YKK two-way zipper, and the ratio of upper and lower pieces is 6:4, allowing more down cover on the top of the body, keeping warm and comfortable performance of sleeping bags. Minimizes difficulty in thermal control during poor weather. 3D foot space allows the foot to move more freely
  • TIPS FOR USE: In order to better utilize the warm function of the sleeping bag, it is recommended to unfold the sleeping bag the day before use to make the down fluffier, and then store the sleeping bag before departure to take it away. It is recommended to use the sleeping bag together with a Naturehike sleeping pad to maximize the warmth of the bag

Key details

material
‎RDS Down
color_spec
‎Blue
Brand
Naturehike
Color
Blue
Occupancy
1 Person

Dimensions and fit

item_package_dimensions_l_x_w_x_h
17.32 x 9.41 x 7.6 inches
package_weight
1.17 Kilograms
item_dimensions_lxwxh
7.09 x 14.96 x 3 inches
size
ISO limit 18℉-Regular

Technical specifications

model_name
Snowbird 2025 Model

Item information

Shape
Mummy
Seasons
3 Seasons
Temperature Rating
ISO limit 18℉ / comfort 29℉
Age Range (Description)
Adult
Sport
Camping & Hiking
Special Feature
Wind blocking strip&U Neck Collar
brand_name
Naturehike
warranty_description
1 Year Manufacturer
number_of_items
1
manufacturer
Naturehike
part_number
SP400 / SP550 / SP1000
included_components
Sleeping Bag
outer_material
Nylon
fill_material_type
RDS Down
sport_type
Camping & Hiking
best_sellers_rank
#55,204 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #131 in Camping Sleeping Bags
date_first_available
July 17, 2025
Highlights

About this item

  • Nylon
  • Imported
  • NOTE: The SP400 does not have a U Neck Collar or windshield strip, the SP550 has one windshield strip, and the SP1000 has two. ISO Comfort Temperature Rating: 29°F Limit Temperature Rating: 18°F
  • PREMIUM RDS&IDS CERTIFIED DOWN: The new 2025 Snowbird model sleeping bags are made from traceable down and certified by RDS Professional. Each item's label can be scanned to track the origin of the down. Selected high quality 650 fluffy duck down with 85% down content and fill weights of 400/ 550/ 1000 grams respectively, and tested by IDS in the USA
  • WARMER PROFESSIONAL DESIGN: Thickening of the three-dimensional wind barrier can effectively prevent cold spots caused by zip gap. The design of wind blocking strip can be tightly wrapped by blocking the convection with external cold lips around the cap. U Neck Collar for better neck warmth. Internal pocket for cell phone and other small items to prevent frostbite. Everything is designed to maximize your heat retention
  • C-SHAPED WRAPPED DESIGN: The sleeping bag adopts C-shaped wrapping design, U-shaped cap cover, YKK two-way zipper, and the ratio of upper and lower pieces is 6:4, allowing more down cover on the top of the body, keeping warm and comfortable performance of sleeping bags. Minimizes difficulty in thermal control during poor weather. 3D foot space allows the foot to move more freely
  • TIPS FOR USE: In order to better utilize the warm function of the sleeping bag, it is recommended to unfold the sleeping bag the day before use to make the down fluffier, and then store the sleeping bag before departure to take it away. It is recommended to use the sleeping bag together with a Naturehike sleeping pad to maximize the warmth of the bag

From the brand

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Customer reviews

20 reviewsPositive

Rated 4.7/5 across 20 reviews — highly regarded by customers.

  • 88% of sampled reviews are from verified purchases.
  • 88% of sampled reviews give 4–5 stars.

Customers say

Customer summary is not available yet.

Reviews with images

Customer review image for Producto 10 de 10Customer review image for Producto 10 de 10Customer review image for Impressive Down Mummy BagCustomer review image for Impressive Down Mummy BagCustomer review image for Impressive Down Mummy BagCustomer review image for AMAZING! Lightweight! WARM Sleeping Bag!Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!
See all photos
★★★★★

Producto 10 de 10

Me sorprendió mucho la calidad de este producto, estuve buscando por mucho tiempo un Saco de dormir que cumpliera con mis expectativas de calidad y precio, este las cumplió todas. La primera impresión que da es que es de muy buena calidad, los terminados, la facilidad para guardarlo, cumple con lo que dice en su descripción. Read more

Customer review image for Producto 10 de 10Customer review image for Producto 10 de 10
Cristian ReyesVerified purchase
★★★★★

Impressive Down Mummy Bag

I've tested my share of sleeping bags, and the Naturehike 0 Degree Down Mummy Sleeping Bag (2025 Model) has quickly become my go-to option for sub-freezing temperatures. Rated for comfort down to approximately 12.6°F (depending on your cold-sleeping tolerance and layering), this bag excels in warmth, packability, and overall value. Where this sleeping bag truly shines is in real-world cold conditions. I tested it this weekend in 25-degree weather and felt warm and cozy. The U-neck collar and dual wind baffles at the shoulders are game-changers. I appreciate that this sleeping bag doesn't make me feel trapped and confined, as many mummy bags tend to do. It is spacious enough, and the down's loft is impressive. I also love the internal pocket for keeping my phone close. The YKK zippers are smooth and snag-free, equipped with anti-snag guards, and there's a full-length draft tube that effectively seals out cold air. In terms of comfort, the bag is plush and molds to your body without creating hot spots. The Naturehike 0 Degree Mummy Sleeping Bag is an excellent choice for cold-weather enthusiasts. It exceeds expectations for the price by combining premium down technology with practical design. If you're preparing for winter treks or simply want a reliable bag that won't weigh you down, consider the 2025 model—you won't regret it. It's highly recommended for backpackers, campers, and anyone tired of freezing their toes off. Read more

Customer review image for Impressive Down Mummy BagCustomer review image for Impressive Down Mummy BagCustomer review image for Impressive Down Mummy Bag
David FVerified purchase
★★★★★

AMAZING! Lightweight! WARM Sleeping Bag!

This Zero Degree bag is so lightweight, it's unbelievable! I love it! I'm an older, female backpacker and lightening my pack is important to me but I don't want to sacrifice comfort to do it. With this bag there is no sacrificing. It's very comfortable and the down is fluffy and soft. And it seems plenty warm! When I tested it out the temperatures only dropped into the 30's, but I didn't get cold at all. This bag is also very well made. The zipper is high quality and I didn't have any issues with it sticking or grabbing fabric and getting caught. I also like the zipper pocket in the top of the bag. And I love the vibrant colors this bag comes in. I got the blue and it's beautiful! The lining is a beautuful gold. Overall, it's just a great looking bag. This bag has all the features of the popular name brand bags and is made to last and very comfortable. I highly recommend it. Read more

Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!Customer review image for AMAZING! Lightweight! WARM Sleeping Bag!
Patty PattersonVerified purchase
★★★★★

Great quality

Haven't used it yet, look as expected good build quality. Read more

Customer review image for Great quality
MarioVerified purchase
★★★★★

Nice size mummy bag!

If you like a little more room to move, in a mummy bag, this might be the bag for you. I have a 44 inch chest and have plenty of room! The down lofts up nicely and the bag overall looks very well made. Stitching is solid and zippers work great. I hate zips that get stuck! Comes with a stuff sack and mesh storage bag too. If you're a cold weather backpacker, the inside chest pocket could come in handy for a water filter (in a ziplock bag), or your phone. Loops at the bottom of the bag for hanging, neck baffle & YKK zips are some other plusses. I will update, if there's anything to add, after a full camping test run. Looks great! Read more

Customer review image for Nice size mummy bag!Customer review image for Nice size mummy bag!Customer review image for Nice size mummy bag!Customer review image for Nice size mummy bag!
DMSCVerified purchase
★★★★★

Great Lightweight and Affordable Down Sleeping Bag

This is one of the most affordable lightweight down sleeping bags out there. The model I got is SP550, with comfort rating of 29.3 degrees and the limit of 18.3 degrees. I'm 5"7' and got the regular size, but the short size is probably big enough. A compression bag as well as a storage bag is included for long term storage. I haven't been able to take this out on a cold night, but I did try this comparing with my 25 degree Zenbivy quilt, and they're about the same in terms of the warmth. This Naturehike sleeping bag has some additional features to keep me warmer, including the U neck collar and adjustable hood. I can't wait to bring this to my fall backpacking trip! UPDATE: I used this one for a camping trip (not backpacking). The temperature dropped to low 30s, and I stayed very warm throughout the night! Great value for the price. Read more

Customer review image for Great Lightweight and Affordable Down Sleeping BagCustomer review image for Great Lightweight and Affordable Down Sleeping BagCustomer review image for Great Lightweight and Affordable Down Sleeping BagCustomer review image for Great Lightweight and Affordable Down Sleeping Bag
S. OdaVerified purchase
★★★☆☆

Very light but not very warm like rated

Construction is good, zippers are nice. Very light weight. The bad, not a very warm sleeping bag. I was looking to replace a Teton leef that was rated the same and was very heavy at 3.8 lbs with synthetic fill. That bag was so much warmer so can you really find a 2.25 lb bag thats warm? Going to keep looking. I think this bag is good just not the warmth I needed. Read more

Azdude
★★★★★

Happy with purchase

Perfect sleeping bag, very fluffy and high quality down. Read more

Anonymous ReviewerVerified purchase
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