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ATEPA DENALI 340L Down Sleeping Bag-Mummy
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SKU: atepa-denali-340l-down-sleeping-bag-mummy
Overview
Built for solo cold-weather camping, this mummy-style sleeping bag is designed to deliver warmth and comfort without unnecessary bulk. It uses 90/10 white duck down with a 650+ fill power, along with a 15D nylon outer fabric and 15D nylon lining, and it includes details such as a diagonal zipper, 3D chest collar, windproof strip, and adjustable hood and brim drawstrings. The footbox shape is intended to provide a bit more room at the lower end, while the YKK double-open self-locking zipper and anti-pinch strip add practical convenience. With an ISO-tested comfort rating of 48°F and a lower limit of 39°F, it suits hunters and campers looking for a compact one-person bag for cool nights.
Why Hunters Choose the Atepa
650+ Fill
Power 90/10 white duck down
15d Nylon
Outer fabric is described as
15d Nylon
Lining is noted as softer
Diagonal Quilting
Zipper design support practical use
Ykk Double-open
Anti-pinch pull tab adds convenience
Key Features
- Mummy-style sleeping bag designed for one person.
- Filled with 90/10 white duck down with 650+ fill power.
- 15D nylon outer fabric with reinforced dark grid material.
- 15D nylon plain-weave lining for a softer interior feel.
- YKK double-open self-locking zipper with anti-pinch pull tab.
- Includes mesh storage bag and hanging loops for drying or storage.
- Temperature ratings include 48°F comfort and 39°F lower limit (ISO).
Best Used For
- Cold-weather campers wanting a 1-person mummy bag with down insulation and a 40°F temperature rating.
- Hunters needing a compact sleeping bag for overnight base camps and packable transport.
- Users who value a softer 15D nylon lining and practical zipper and hood adjustments.
- Campers looking for added foot room and comfort in a mummy-style sleeping bag.
- Outdoorsmen who want included storage and hanging features for organized drying and packing.
Specifications
| Carry Bag | 100% Nylon 15D |
|---|---|
| Chest Collar | 3D three-dimensional chest collar |
| Exposed Size | 6CM |
| Fabric | 15D nylon dark grid material |
| Filling | 90/10 White Duck Down, FP650+, 340g |
| Foot Design | Inverted trapezoidal sole design |
| Hanging Ears | Two hanging ears at the foot |
| Hood Drawstring | Flat rope |
| Insulation Type | Down |
| Lining | 100% Nylon 15D |
| Lining Material | 15D nylon plain weave |
| Outer Fabric | 100% Nylon 15D |
| Packaged Size | 13.78 in x 6.69 in x 6.69 in |
| Size | 86.61 in x 31.89 in x 21.65 in |
| Sleeping Capacity | 1-person |
| Storage Bag | Mesh storage bag |
| Temperature Rating F | 40°F |
| Tested Comfort | 48°F (ISO) |
| Tested Lower Limit | 39°F (ISO) |
| Weight | 0.8 kg |
| Windproof Strip | Included |
| Zipper | YKK double-open self-locking zipper |
| Zipper Pocket | Built-in YKK zipper pocket with anti-pinch pull tab |
Pros
- 650+ fill power 90/10 white duck down insulation for added warmth and comfort
- 15D nylon outer fabric is described as tear-proof and reinforced for durability
- 15D nylon lining is noted as softer and more delicate than common 20D nylon
- Diagonal quilting and zipper design support practical use and down distribution
- YKK double-open self-locking zipper with anti-pinch pull tab adds convenience
- Includes mesh storage bag for protecting the down during storage
Considerations & Trade-offs
- The 40°F temperature rating, with ISO-tested comfort at 48°F and lower limit at 39°F, suggests this bag is best suited to moderate cold rather than deep-winter conditions.
- At 0.8 kg and a packed size of 13.78 in x 6.69 in x 6.69 in, it is compact for a down bag, but still adds some bulk compared with ultralight minimalist sleep systems.
- The mummy shape and 1-person sizing prioritize warmth and efficiency, but they offer less room to move than roomier sleeping bag styles.
- The 15D nylon shell and lining are lightweight and soft, but they may call for a bit more care in rough camp use than heavier fabrics.
Suggested Comparisons
- Down sleeping bags
- Mummy sleeping bags
- Cold-weather sleeping bags
- Ultralight sleeping bags
Suggested Accessories
- Sleeping bag liner
- Compression stuff sack
- Sleeping pad
- Pillow
Frequently Asked Questions
What temperature range is listed for the ATEPA DENALI 340L Down Sleeping Bag-Mummy?
The listed temperature details are Tested Comfort 48°F (ISO), Tested Lower Limit 39°F (ISO), and a Temperature Rating of 40°F.
Is this sleeping bag sized for one person?
Yes. The product specifications list Sleeping Capacity as 1-person.
What insulation does it use?
It uses 90/10 white duck down with FP650+ fill power, and the listed filling amount is 340g.
What materials are listed for the outer fabric and lining?
The specifications list both the outer fabric and lining as 100% nylon 15D.
What packed size and weight are listed?
The packaged size is listed as 13.78 in x 6.69 in x 6.69 in, and the weight is listed as 0.8 kg.