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ATEPA COCOON HUG E2 400 Ultralight Coldmaster(TM) Down Sleeping Bag, 35degF 3-Season Backpacking Bag with Detachable Hood
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$129.99
List Price: $149.99
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SKU: atepa-coldmaster-down-sleeping-bag-ultralight-sleeping-bag
Overview
Built for solo nights in camp, on the trail, or during cool-weather travel, this sleeping bag is aimed at users who want a flexible sleep setup without carrying unnecessary bulk. Its 3-season temperature range, hybrid down-and-cotton fill, and detachable hood give it a practical balance of warmth and adaptability for spring, fall, and cooler summer conditions. The rectangular envelope shape can be used as a traditional bag, opened flat as a blanket, or worn as a shawl, while the included webbing straps help secure it to a sleeping pad. With a compact packed size and water-repellent recycled nylon shell and lining, it suits hunters and outdoor enthusiasts who value packability and versatile camp comfort, though the rectangular cut is less streamlined than a mummy-style bag.
Why Hunters Choose the Atepa
Versatile 3-in-1
Design works as sleeping bag,
Detachable Hood
Lets you adjust warmth for
650+ Fill
Power down and cotton hybrid
Lightweight 2.65-pound
Build packs down to a
Includes Sleeping
Pad straps to help reduce
Key Features
- 3-in-1 sleep system: use as a sleeping bag, open blanket, or shawl.
- Detachable hood lets you adjust coverage for changing weather.
- Filled with 400g Coldmaster down hybrid insulation for added warmth.
- ISO-tested comfort rating of 44.6°F and lower limit of 35.6°F.
- Ultralight 2.65 lb design packs to 13.4 x 6.7 inches.
- Includes three webbing straps for sleeping pad compatibility.
- Made with 20D 400T recycled nylon taffeta shell and lining.
Best Used For
- Backpackers wanting a compact 3-season bag for spring, fall, and cool summer nights.
- Campers who prefer a versatile sleep system that can open into a blanket or shawl.
- Hunters needing a one-person bag with adjustable warmth for changing camp conditions.
- Travelers and road-trippers packing light but still wanting insulated overnight comfort outdoors.
Specifications
| Capacity | 1 Person |
|---|---|
| Comfort Temperature | 44.6°F / 7°C |
| Extreme Rating | 10.4°F / -12°C |
| Fill | Coldmaster(TM) Down 400g |
| Fill Power | 650+ FP, US Standard |
| Included | Sleeping Bag, Compression Sack, 3 Webbing Straps |
| Lining | 20D 400T Recycled Nylon Taffeta |
| Lower Limit | 35.6°F / 2°C |
| Open Size | 86.6" x 29.5" |
| Packed Size | 13.4" x 6.7" |
| Product Name | ATEPA COCOON HUG E2 400 |
| Shape | Rectangular / Envelope |
| Shell Fabric | 20D 400T Recycled Nylon Taffeta |
| Water Repellency Grade | 4 |
| Weight | 42.4 oz |
Pros
- Versatile 3-in-1 design works as sleeping bag, blanket, or shawl.
- Detachable hood lets you adjust warmth for changing conditions.
- 650+ fill power down and cotton hybrid fill provide insulation.
- Lightweight 2.65-pound build packs down to a compact size.
- Includes sleeping pad straps to help reduce shifting overnight.
- Water-repellent recycled nylon taffeta adds practical weather protection.
Considerations & Trade-offs
- The rectangular/envelope shape and 1-person capacity favor comfort and versatility over a more compact mummy-style profile.
- The listed comfort temperature is 44.6°F, so the bag is better suited to cool 3-season use than colder conditions.
- The detachable hood adds flexibility, but it also means warmth and coverage can be adjusted down when you choose a more open setup.
- At 2.65 lbs, it is still a full-featured sleep system rather than an ultra-minimal option for users focused only on the lightest possible carry.
Suggested Comparisons
- 3-season backpacking sleeping bag
- rectangular envelope sleeping bag
- down quilt or blanket-style sleep system
- sleeping bag with detachable hood
Suggested Accessories
- Sleeping pad
- Compression sack
- Camp pillow
- Sleeping bag liner
Frequently Asked Questions
Is this sleeping bag rated for cold-weather hunting trips?
It is described as a 3-season sleeping bag with an ISO-tested comfort rating of 44.6°F and a lower limit of 35.6°F. The product is positioned for spring, fall, and cool summer nights, so it is not presented as a deep-winter bag.
Can it be used in more than one setup around camp?
Yes. The product is designed as a 3-in-1 sleep system: it can be used as a sleeping bag, opened fully as a blanket or quilt, or worn as a shawl. The hood is detachable, which adds another way to adjust the setup.
Does it connect to a sleeping pad?
Yes. The included 3 webbing straps are meant to connect the sleeping bag with a sleeping pad to help reduce shifting during sleep.
What comes in the package?
The included items are the sleeping bag, a compression sack, and 3 webbing straps.
What materials and insulation are listed for this bag?
The listed fill is 400g of Coldmaster(TM) Down, described as a blend of 55% 90/10 white duck down and 45% renewable high-loft cotton. The shell and lining are both listed as 20D 400T recycled nylon taffeta.