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ATEPA ROCKY 520L Sleeping Bag-Mummy
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$79.99
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SKU: atepa-rocky-520l-sleeping-bag-mummy
Overview
Built for solo nights in camp, on the trail, or during road-based trips, this mummy-style sleeping bag is aimed at hunters and outdoor users who want a compact sleep system with practical features. The diagonal zipper, wind-blocking zipper wall, anti-pinch zipper chain, and fully openable side and bottom zippers are all designed to make entry, exit, and ventilation more manageable. It also includes a storage bag for transport, plus hanging loops at the feet for drying or stowing after use. With down fill, a drawstring brim, and a three-dimensional chest collar, it is set up to provide added warmth and coverage when conditions turn cooler.
Why Hunters Choose the Atepa
Diagonal Zipper
Design makes entry and exit
Includes Storage
Bag for convenient transport and
Brim Drawstring
Adds adjustable coverage at the
Zipper Windproof
Wall helps reduce drafts around
Side Bottom
Zippers can be fully opened
Key Features
- Mummy-style sleeping bag designed for single-person hiking, camping, and self-driving trips.
- Diagonal zipper design for easier entry and exit.
- Includes a storage bag for convenient transport and storage.
- Brim with drawstring, zipper windproof wall, and anti-pinch zipper chain.
- Side and bottom zippers can be fully opened for added versatility.
- Filled with 90/10 white duck down with FP650+ fill power.
- Features YKK zippers with double-opening self-locking mechanism and anti-pinch pull tab.
Best Used For
- Single-night hikers wanting a lightweight sleeping bag for compact packing and easy carry.
- Campers who prefer a mummy-style bag with side and bottom zippers for versatility.
- Self-driving travelers needing a portable sleeping bag with included storage bag.
- Users seeking a sleeping bag with drawstring brim and windproof zipper wall for added coverage.
- Outdoor enthusiasts looking for a down-filled bag with listed comfort, limit, and extreme ratings.
Specifications
| 3d Chest Collar | Yes |
|---|---|
| Anti Pinch Pull Tab | Yes |
| Anti Pinch Zipper Chain | Yes |
| Brim With Drawstring | Yes |
| Built In Ykk Zipper Pocket | Yes |
| Carry Bag | 100% 15D Nylon |
| Comfort Rating | 45/7 |
| Diagonal Zipper Design | Yes |
| Double Opening Self Locking Mechanism | Yes |
| Down Fill | 90/10 white duck down |
| Exposed Size At Feet | 6CM |
| Exterior Fabric | 15D nylon hidden grid fabric (anti-tear, ribbed) |
| Extreme Rating | 12/-11 |
| Fill Power | FP650+ |
| Filled Lining Structure | Yes |
| Filling | 100% Polyester |
| Hanging Ears At Feet | Yes |
| Interior Lining | 15D nylon plain weave lining |
| Limit Rating | 37/3 |
| Lining | 100% 15D Nylon |
| Outer Fabric | 100% 40D Nylon |
| Packaged Size | 39x20x20cm |
| Parallel Quilting | Yes |
| Side And Bottom Zippers Fully Openable | Yes |
| Size | 220x81x55cm |
| Storage Bag Included | Yes |
| Velvet Filled Cap Opening | Yes |
| Weight | 1.1kg (2.4lbs) |
| Zipper Windproof Wall | Yes |
| Zippers | YKK |
Pros
- Diagonal zipper design makes entry and exit easier in camp conditions.
- Includes a storage bag for convenient transport and storage.
- Brim with drawstring adds adjustable coverage at the opening.
- Zipper windproof wall helps reduce drafts around the zipper area.
- Side and bottom zippers can be fully opened for added versatility.
- YKK zippers with anti-pinch pull tab support smoother operation.
Considerations & Trade-offs
- The mummy shape and 220 x 81 x 55 cm size are designed for a more fitted sleep system, so it may feel less roomy than rectangular bags.
- At 1.1 kg, it is not the lightest option for hunters or backpackers who are prioritizing minimum pack weight.
- The listed comfort, limit, and extreme ratings suggest it is best matched to specific temperature ranges, so conditions outside those ranges may require additional insulation.
- The diagonal zipper, side and bottom zippers, and windproof wall add versatility, but they also introduce more hardware and features to manage than a simpler bag.
Suggested Comparisons
- Mummy sleeping bags
- Down sleeping bags
- Three-season sleeping bags
- Backpacking sleeping bags
Suggested Accessories
- Sleeping pad
- Compression sack
- Tent
- Camp pillow
Frequently Asked Questions
What temperature ratings are listed for the ROCKY 520L sleeping bag?
The listed ratings are Comfort 45/7, Limit 37/3, and Extreme 12/-11. These are the only temperature figures provided in the product data.
What materials are specified for the outer fabric, lining, filling, and carry bag?
The product data lists a 100% 40D nylon outer fabric, 100% 15D nylon lining, 100% polyester filling, and a 100% 15D nylon carry bag. It also states the sleeping bag is filled with 90/10 white duck down with FP650+ fill power.
Does this sleeping bag include a storage or carry bag?
Yes. The long description says a storage bag is included for convenient transportation and storage.
What design features are listed to make the bag easier to use?
The product description mentions a diagonal zipper design, anti-pinch zipper chain, side and bottom zippers that can be fully opened, and YKK zippers with a double-opening self-locking mechanism and anti-pinch pull tab.
What size and packed size are provided for the ROCKY 520L?
The listed size is 220 x 81 x 55 cm, and the packaged size is 39 x 20 x 20 cm.