Coldmaster™ down sleeping bag 30°F / -1°C Ultralight and Multifunctional

SKU: AS2430_BLACK_L
Sale price$129.99 Regular price$149.99
Save 13%
4.5

Color: Black

Coldmaster Down

Looking for warm enough sleeping bag with affortable price? The ATEPA Coldmaster Down Sleeping Bag is the trending technology with mixed down materials (51% white duck down + 49% renewable cutton).

Nature Down

Coldmaster

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Trending

Compared nature down, Coldmaster down offers even warmth with with no cold spots, (7% difference only) but perform better in wet environment (Moisture-proof) with superior insulation.

3-in-1 Versatility

This sleeping bag isn’t just a bag—it’s your ultimate outdoor companion. Use it as a cozy sleeping bag, spread it out as a mat, or unzip it into a shawl for those chilly nights by the fire. The detachable hood and adjustable features give you the flexibility you need for hiking, backpacking, or camping. Adventure-ready, wherever life takes you.

Premium Materials

Built with anti-down leakage fabric and a soft 20D nylon lining, this sleeping bag is as durable as it is comfortable. The water-repellent outer layer keeps moisture at bay, while the inner lining ensures a cozy, luxurious feel. Designed for rugged use, it’s a must-have for those who value quality and reliability.

All-Weather Warmth

Stay toasty even in the coldest conditions. The Coldmaster™ is packed with a 70/30 blend of white duck down and renewable cotton, providing exceptional insulation without adding extra weight. Whether it’s a frosty camping trip or a brisk fall hike, this sleeping bag traps heat effectively, keeping you warm no matter the season.

Portable

Say goodbye to bulky gear. At just 1.5 kg, the Coldmaster™ packs down small into its compression sack, making it the perfect ultralight option for campers and backpackers. Easy to carry, easy to store, and ready to go wherever your journey leads.

Adjustable Foot Zipper

Too warm? Too cold? With the adjustable foot zipper, you’re in control. Ventilate during mild nights or seal in heat when the temperature drops. It’s all about tailoring your comfort to the environment—just another reason this sleeping bag is a fan favorite.

Eco-Friendly Materials

We’re serious about sustainability. Crafted with renewable, eco-conscious materials, the Coldmaster™ combines performance with care for the planet. Durable, reliable, and kind to the environment—it’s a sleeping bag you can feel good about owning.

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Product comparison

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Down Fill

1.3 lbs/600g

0.88 lbs/ 400g

0.66 lbs/300g

Made With

51% White Duck Down + 49% Qingdao Cotton

55% White Duck Down + 45% Renewable Cotton

55% White Duck Down + 45% Renewable Cotton

Fill Power

650

650

650

Moisture-Proof

Yes

Yes

Yes

Material

400T 20D Nylon

400T 20D Nylon

400T 20D Nylon

Specs

Product Dimensions: ‎88.58" x 35.43"

Packed Size: 14.75 x 7 x 7 inches

Weight: 1.5 kg / 3.3 lbs

Outer Fabric: 20D 400T Nylon

Lining Fabric: 20D 4000T Plain Weave

Filling: COLDMASTER PRO 600G (51% 70/30 White Duck Down + 49% Ball Fiber)

Package: Sleeping bag*1, Storage bag*1, Mat combination webbing*3

Product Details

Velcro

Internal Pocket

Flexible Drawstring

Customer Reviews

Based on 118 reviews
67%
(79)
23%
(27)
5%
(6)
2%
(2)
3%
(4)
M
MARK KLINE
Looks great and lightweight, but temp ratings off!

Very nice looking, roomy, lightweight and compatible. Affordable too.BUT, the temp ratings are a shocking 15 degrees off. Backpacked in the Ozarks for 3 night. First night was 60 for a low and the bag was perfect. The 2nd and 3rd nights were in the low-mid 40s and I was very cold all night, even with 2 layers of shirts and a 3-season air pad. The comfort rating should say 50, not 34. The low 40s felt like a transition rating, which was supposed to be 24.I’ll still keep the bag because it’s nice, but reset expectations for 15 degrees off the ratings.

M
MARK KLINE
Looks great and lightweight, but temp ratings off!

Very nice looking, roomy, lightweight and compatible. Affordable too.BUT, the temp ratings are a shocking 15 degrees off. Backpacked in the Ozarks for 3 night. First night was 60 for a low and the bag was perfect. The 2nd and 3rd nights were in the low-mid 40s and I was very cold all night, even with 2 layers of shirts and a 3-season air pad. The comfort rating should say 50, not 34. The low 40s felt like a transition rating, which was supposed to be 24.I’ll still keep the bag because it’s nice, but reset expectations for 15 degrees off the ratings.

R
Robert Moore
Don’t buy it!

I slept at 8000ft and temp was down to 39degrees!! I froze and in this bag with layered clothes!!

R
Robert Moore
Don’t buy it!

I slept at 8000ft and temp was down to 39degrees!! I froze and in this bag with layered clothes!!

A
Amazon Customer
More like a costume

Not sure what the purpose of this was but it seemed to be more like a costume than anything for outdoor use. The overall construction seemed to be suspect. I had a hard time using the zippers in the house under normal circumstances so I can't imagine having it outdoor circumstances.