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

SKU: AS2430_BLACK_L
Sale price$169.99 Regular price$199.99
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Color: Black

Coldmaster Down

Looking for warm enough sleeping bag with affordable price? ATEPA Coldmaster sleeping bag is your perfect winter camping campaion.

Comparing fiber stability and warmth:

Nature Down:The fiber structure of nature down will be destroyed in a humid environment

Coldmaster Down:The fiber structure remains healthy and warmth in all environments

Nature Down

Coldmaster Down

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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)

Temperature Rating:

  • Comfort: 34°F/1°C
  • Lower Limit: 25°F/−4°C
  • Extreme: −6°F/−21°C

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

Product Details

Velcro

Internal Pocket

Flexible Drawstring

Customer Reviews

Based on 37 reviews
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Y
Yanaicy Cendoya
Practical and warm sleeping bag!

It is easy to zip and adjust, the compact storage bag makes it simple to carry and the material feels durable and keeps warmth in on chilly nights. Great for backpacking and outdoor trips.

S
Suhas
Great Sleeping Bag

Great sleeping bag! The zipper is smooth and sturdy, comfort is excellent, and the overall quality feels premium. It’s lightweight, packs down small, and easy to carry. Size is roomy enough to move around, yet not bulky. Perfect balance of warmth, weight, and portability.

D
Denny
Lightweight, easy and Perfect for Camping!

This sleeping bag is a total game-changer for my camping trips! It’s incredibly lightweight yet warm, packs down super small, and I love that it’s made from recycled materials. The wearable design and ability to attach it to a sleeping pad make it super practical—definitely worth every penny!

S
Sydney
Lightweight sleeping bag

I got this for a daughter to get camping . This is very light and rolls up compactly so it’s easy to carry. The weather was very warm in summer and humid and this was the perfect weight for sleeping in these conditions. This would also be great as a sleepover sleeping bag. The zipper seems to work well and didn’t get stuck. It’s a little slippery when u use blankets. but overall nice experience.So far I’ve only used it once during camping and it doesn’t fragile.

V
Valerie
Portable

Great material and durable. Also small and fits in my backpack.