ATEPA Coldmaster Down Sleeping Bag Ultralight Sleeping Bag

SKU: AS2409_GREEN_L
Sale price$119.99 Regular price$149.99
Save 20%
4.8
Color: Green

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

Drag

Trending

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

3-in-1 design

With its 3-in-1 design, this sleeping bag doubles as a shawl or pairs seamlessly with another to create a two-person setup. Made from 20D recycled nylon and eco-conscious filling, it delivers top-notch performance in wet or cold conditions while supporting sustainability.

Warmth & Comfort

Engineered for extreme cold, this sleeping bag features a 55% white duck down and 45% recycled fiber blend with a 650 fill power. The innovative arc quilting reduces cold spots, while the windproof zipper enhances insulation. Lightweight yet cozy, it’s the perfect balance of warmth and portability for subzero expeditions.

Lightweight

Weighing only 2.65 lbs and compressing down to a compact 13.39" x 6.69", this sleeping bag is a breeze to pack and carry. Perfect for backpackers, long-distance hikers, and minimalist campers seeking warmth without the bulk.

All-Season

With a comfort range of 7°C (44°F) and an extreme temperature rating of -12°C (10°F), this sleeping bag is perfect for deep winter expeditions or chilly spring and autumn nights. Built to perform in any season, it’s your go-to choice for consistent warmth.

Room for Two

Easily convert this single sleeping bag into a spacious double by pairing it with another. Whether you’re camping solo or with a companion, this design offers unmatched flexibility without sacrificing comfort or warmth.

Multi-Scenario

Whether you’re trekking through snowy mountains, camping in damp forests, or enjoying a crisp fall evening under the stars, this sleeping bag has you covered. Combining durability, warmth, and versatility, it’s built to support every adventure you take on.

Compare

Dream Products

Looking for dream sleeping bag in your journey? Coldmaster down sleeping get you covered!

Down Fill

0.88 lbs/ 400g

1.3 lbs/600g

0.66 lbs/300g

Made With

55% White Duck Down + 45% Renewable Cotton

51% White Duck Down + 49% Qingdao 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

Design Details

Specs

Product Dimensions: (190+30) x 75 cm

Packed Size: 34*17*17cm

Weight: 1.2 kg / 2.65 lbs

Outer Fabric: 20D 400T Recycled Nylon

Lining Fabric: 20D 400T Recycled Nylon

Filling: COLDMASTER ECO PRO 400G (55% 90/10 USA Standard White Duck Down + 45% Recycled Ball Fiber)

Temperature Rating:

  • Comfort: 45°F/7°C
  • Lower Limit: 36°F/2°C
  • Extreme: 10°F/−12°C

Package: Sleeping bag *1,Storage bag *1,Combining webbing with cushion *3

Product Details

YKK Zipper

Adjustable Drawstring

Veicvo

Free Your Feet

Customer Reviews

Based on 21 reviews
86%
(18)
10%
(2)
5%
(1)
0%
(0)
0%
(0)
A
Auntie M
Perfect for winter or summer camp!! Compact and easy to pack up!

Purchased for daughter for Drum Corps International audition. Sleep quarters are on school gym floor. It was perfect for winter and she said it will be great for her entire summer tour!! Super soft, light and warm. Compact and easy to pack up too.

n
ncnickle
Lightweight but warm enough

I used it tent camping at the end of October in the 40s. I was never cold despite how thin it was but to be fair I had brought an extra lightweight blanket. I can’t say how it would perform under 40 degrees but you should be fine to at least that temp without another layer. It’s light, thin and packs easy. Great for the price.

W
W. kzms
Very lightweight

Haven't got to actually use it yet but just testing at home, seems to be a great comfy bag!!

N
Nathan Crites
Pleasantly surprised

I was a little worried about this after I ordered it. I read a review said not meant for people with broad shoulders. I'm 5'9" and 268 pounds and have very broad shoulders. I got into it and zipped it up and had plenty of room to move around. It's lighter than expected and packs smaller than I thought. I will review it again at the end of my backpacking season but right now it's getting 5 stars. Only because there isn't anymore!

F
Feltz Yola
Bester Schlafsack ever

Gut aufgeschüttelt und ruhen lassen, damit sich die Daunen gut entfalten. Hält gut warm. Eine angenehme Wärme kuschelig weich.