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ATEPA BULWARK 300 3-in-1 Convertible Sleeping Bag | 300g 650FP Down Blend for Backpacking & Camping
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$119.99
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SKU: atepa-bulwark-300-3-in-1-convertible-sleeping-bag-300g-650fp-dow
Overview
Built for hunters and campers who want one adaptable sleep system instead of multiple pieces of gear, this bag can be used as a top quilt, secured to a sleeping pad, or zipped closed as a traditional sleeping bag. Its 300g fill blend and 3-season temperature ratings make it suited to spring through fall trips where conditions can change overnight. The semi-rectangular shape, 3D foot box, and full-zip design add room and flexibility, while the included compression sack helps it pack down for travel. It is a practical choice for backpacking, van camping, and other outings where versatility matters more than a fixed mummy-bag setup.
Why Hunters Choose the Atepa
3-in-1 Design
Works as a top quilt,
300g 650+
Fill power down blend offers
Integrated Sleeve
Helps secure the bag to
3d Foot
Box and baffles are designed
Compresses 11.8"
X 6.7" and includes a
Key Features
- 3-in-1 convertible design works as a top quilt, pad cover, or full sleeping bag.
- Filled with 300g Coldmaster blend: 51% 650+ FP duck down and 49% recycled cotton.
- ISO temperature ratings: comfort 53.6°F, limit 44.6°F, extreme 26.6°F.
- Semi-rectangular shape includes a 3D foot box for added room at the feet.
- 20D 400T recycled nylon shell and liner are water-repellent and down-proof.
- Includes a 210D compression sack for easier packing and storage.
Best Used For
- Backpackers needing one adaptable sleep system for spring, summer, and fall trips.
- Campers who want a quilt, pad-integrated setup, or full sleeping bag.
- Pad users seeking a stable sleep setup with an integrated sleeve.
- Minimalist travelers prioritizing compact packing and multiple configuration options.
- Eco-conscious outdoor users looking for recycled materials in a versatile bag.
Specifications
| Baffles | Cross-quilting and 3D baffle construction |
|---|---|
| Compression Sack | 210D compression sack |
| Convertible Design | 3-in-1 convertible system |
| Draft Flap | Yes |
| Eco Materials | Recycled nylon shell and liner; recycled cotton in fill |
| Fabric Liner | 20D 400T Recycled Nylon |
| Fabric Shell | 20D 400T Recycled Nylon |
| Fill | 300g Coldmaster Blend (51% 650+ FP Duck Down, 49% Recycled Cotton) |
| Foot Box | 3D Foot Box |
| Hood | Adjustable hood |
| Ideal For | Versatile backpackers, pad users, minimalist travelers, eco-conscious adventurers |
| Included | Sleeping Bag, Compression Sack |
| Packed Size | 11.8" x 6.7" diameter (30 x 17 cm) |
| Pad Compatibility | Standard 20"-25" width inflatable pad |
| Shape | Semi-Rectangular with 3D Foot Box |
| Shell Properties | Water-repellent and down-proof |
| Temperature Rating Iso Comfort | 53.6°F (12°C) |
| Temperature Rating Iso Extreme | 26.6°F (-3°C) |
| Temperature Rating Iso Limit | 44.6°F (7°C) |
| Unfolded Size | 78.7" x 33.5" (200 x 85 cm) |
| Use Modes | Top quilt, pad cover, traditional sleeping bag |
| Weight | 2.5 lbs (1.15 kg) |
Pros
- 3-in-1 design works as a top quilt, pad cover, or full sleeping bag.
- 300g 650+ fill power down blend offers adaptable three-season comfort.
- Integrated sleeve helps secure the bag to standard 20"-25" inflatable pads.
- 3D foot box and baffles are designed for added room and even fill distribution.
- Compresses to 11.8" x 6.7" and includes a compression sack for packing.
- 20D recycled nylon shell and liner use down-proof, water-repellent materials.
Considerations & Trade-offs
- The 53.6°F comfort rating and 44.6°F lower limit make this a three-season option, so it is not the right choice for colder conditions.
- Its 3-in-1 design adds versatility, but that also means more setup choices and more parts to manage than a simple fixed-shape sleeping bag.
- The integrated pad sleeve is sized for standard 20"–25" inflatable pads, so compatibility may be limited with narrower or wider pads.
- At 2.5 lbs, it is compact for a convertible system, but not the lightest possible option if your priority is a dedicated ultralight quilt or bag.
Suggested Comparisons
- 3-season sleeping bag
- top quilt
- sleeping pad-compatible sleep system
- backpacking sleeping bag
Suggested Accessories
- Sleeping pad
- Compression sack
- Sleeping bag liner
- Pillow
Frequently Asked Questions
Can the BULWARK 300 be used as a quilt, a pad cover, and a full sleeping bag?
Yes. The product is described as a 3-in-1 convertible sleep system that can be used as a standalone top quilt, attached to an inflatable sleeping pad with its integrated sleeve, or zipped up as a traditional sleeping bag.
What temperature range is listed for this sleeping bag?
The listed ISO ratings are Comfort 53.6°F (12°C), Limit 44.6°F (7°C), and Extreme 26.6°F (-3°C). The product description positions it for 3-season use.
What kind of fill does it use?
It uses a 300g Coldmaster blend made of 51% 650+ fill power duck down and 49% recycled cotton.
Will it work with my sleeping pad?
The description says it has an integrated sleeve for standard inflatable pads that are 20" to 25" wide. It is intended to secure to your pad for a more integrated sleep setup.
What comes included with the sleeping bag?
The included items listed are the sleeping bag and a 210D compression sack.