














Coldmaster™ down sleeping bag 30°F / -1°C Ultralight and Multifunctional
- Spacious Comfort: The sleeping bag features a widened design (225 x 90 cm), providing ample room for comfortable movement, including turning or shifting positions during sleep.
- 3-in-1 Design: It's a multifunctional sleeping bag that can serve multiple purposes. It comes with an adjustable hood, a detachable sleeping bag, and a built-in mat, which can be combined using webbing buckles. The sleeping bag can also be used as a shawl when unzipped.
- Durable Materials: The outer fabric has an anti-down leakage water-repellent treatment, and the inner material is 20D nylon, which is soft to the touch. This combination provides durability while ensuring comfort.
- Wind Protection and Optimized Insulation: The sleeping bag incorporates multiple features to retain heat and block drafts: a chest collar, a windproof zipper flap, and an adjustable hood drawstring. Filled with a high-quality, cost-effective 70/30 blend of white duck down and Qingdao cotton for excellent insulation.
- Adjustable Comfort Features: The sleeping bag includes a foot vent zipper for personalized temperature control around the feet. Dual inner/outer zipper access ensures easy entry/exit and ventilation flexibility, secured by an anti-snag tab to prevent accidental opening.
- Storage and Portability: The sleeping bag is designed for easy storage and portability with an Oxford cloth compression bag for compact packing.
- Product Size: 88.58" x 35.43"
- Packaging Size: 14.75 x 7 x 7 inches
- Product Weight: 1.5 kg / 3.3 lbs
- Outer Material: 20D 400T Nylon
- Filling: Coldmaster Down 600g (51% 70/30 white duck down + 49% renewable cotton)
- Included Items: Sleeping bag*1, Storage bag*1, Mat combination webbing*3
Temperature Rating:
- Comfort: 34°F/1°C
- Lower Limit: 25°F/−4°C
- Extreme: −6°F/−21°C
Shipping:
- Free shipping for orders over $49
- Your order will be processed within 2 business days once payment is received.
- The transit time for your order will range from 2 to 7 business days after processing.
Warranty:
Atepaoutdoors is dedicated to providing reliable, high-quality outdoor gears with premium support.
- All items are eligible for a 30-day return or exchange without any specific reason. If the issue is attributed to the seller or the product itself, the seller will cover the shipping costs.
- All products purchased from Atepaoutdoors come with a limited warranty for a period of one year from the date of purchase.
- Any questions please contact our customer service team at [support@atepaoutdoors.com].


HYBRID Down Sleeping Bag
Filled with 600g of hybrid insulation that combines 650FP down and synthetic fibers, this sleeping bag delivers the natural warmth of down with enhanced moisture resistance than traditional down bags. It prevents cold spots, supporting survival in extreme 3.2°F (-16°C) conditions - perfect for backpacking and camping, even in damp outdoor conditions.

3-in1 Sleeping Bag
It can be used as a wearable sleeping bag, blanket, or poncho. Adjustable straps on both sides allow you to secure the sleeping bag to your sleeping pad, preventing movement at night and improving insulation from the ground. Two sleeping bags can also be zipped together to create a spacious double sleeping bag, perfect for couples.

Innovative Technology
Engineered by ATEPA, this HYBRID Down Sleeping Bag traps body heat just like natural feathers. Enjoy ultralight, winter-grade warmth that won't fail when wet, packing down incredibly small for your toughest backcountry adventures. Warm Warmth. Lightweight. All-Weather Reliability.
Featured Designs
Check more details with our eco-friendly sleeping bag and thoughtful designs.

Pad Attachment System
Designed with dual 2-way zippers and pad attachment straps, the sleeping bag offers a better sleep at night

Extra-Wide Comfort
The XL size (88.58"×35.43") provides extra space for side sleepers and easy movement. Super comfortable for camping, hiking, backpacking and all.

Double Sleeping Bag
The zipper with multiple sliders can be opened from the beginning to the end - making it flexible to be used as a double sleeping bag. You own more than 1 sleeping bag with it.

Perfect for All Positions
The Wider Design and Zipper System make the sleeping bag perfect for for Active Sleepers, Side Sleepers, Stomach Sleepers, and Taller Users.

Warm & Comfort
This sleeping bag adopts3D baffle technology, consisting of independent insulation lofts. Each loft's down is stable and evenly distributed, effectively preventing down from running and firmly lock in heat

Water-Resistant
The 20D 400T ripstop nylon shell features down-proof and water-repellent treatment to protect insulation from light rain or condensation.
Product Details
Details tell the product quality. The wearable sleeping bag tIncludes a removable hood, windproof zipper draft tube, inner pocket, and foot ventilation zipper, etc.

Velcro

Internal Pocket

Free Your Feet

Flexible Drawstring

Solid Staps

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
Compare
Product comparison
Find the most suitable sleeping bag for your next adventure:



1.3 lbs/600g
0.88 lbs/ 400g
0.66 lbs/300g
51% White Duck Down + 49% Qingdao Cotton
55% White Duck Down + 45% Renewable Cotton
55% White Duck Down + 45% Renewable Cotton
650
650
650
Yes
Yes
Yes
400T 20D Nylon
400T 20D Nylon
400T 20D Nylon
FAQ
Frequently Asked Questions on our backpacking sleeping bags:
Why should I choose this hybrid sleeping bag over a traditional 100% down bag for backpacking?
Great question! While 100% down is lightweight, it loses warmth when wet. This hybrid fill (down + synthetic) keeps loft even in humid conditions. It’s more reliable for backpacking in damp environments where pure down may fail.
Can this sleeping bag be used in rainy weather?
Yes, it handles light rain and moisture with its water-resistant shell and hybrid insulation. It’s not fully waterproof but outperforms traditional down bags in damp conditions. For heavy rain, use it inside a tent or shelter.
Is this backpacking sleeping bag warm enough for a 30°F night, and will it fit in a small backpack?
Yes. Rated to 30°F limited for cold nights with proper layering. For added warmth, use a sleeping pad (R-value >4) for better ground insulation. It has an excellent warmth-to-weight ratio and packs down small for easy backpacking.
Can this sleeping bag stay in place on a sleeping pad and improve warmth?
Yes. It features side straps that securely attach to a sleeping pad, preventing movement during the night. This also improves ground insulation for better warmth and comfort while sleeping.
Is it machine washable? How should I store it?
Is it machine washable? How should I store it?
