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Mountain Hardwear Bishop Pass Windstopper 0deg Sleeping Bag
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$550.00
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SKU: WX2*0748937
Overview
Built for cold-weather trips where conditions can change quickly, this sleeping bag is aimed at backpackers, climbers, and mountaineers who want a versatile option for serious overnight use. It combines 650-fill down with a GORE-TEX WINDSTOPPER fabric package and a 100% recycled GORE-TEX ePE membrane, while the 0°F comfort rating places it in winter-ready territory. Details like the shaped draft collar, adjustable down-filled face gasket, contoured foot-box, and full-length draft tube are designed to help manage warmth and reduce cold spots. Included compression and storage sacks, plus zip-together compatibility and ventilation options, make it practical for trips where packability and adaptability matter.
Why Hunters Choose the Mountain Hardwear
Comfort Rated
Down to 0°F for cold-weather
650-fill Down
Lightweight warmth and compressibility
Gore-tex Windstopper
Fabric is breathable, highly water-resistant,
Shaped Draft
Collar and adjustable down-filled face
Compression Sack
Storage sack are included for
Key Features
- Comfort rated down to 0°F for cold-weather camping and winter use.
- 650-fill down provides lightweight warmth and compressibility.
- GORE-TEX WINDSTOPPER fabric is breathable, highly water-resistant, and windproof.
- Shaped draft collar and adjustable down-filled face gasket help seal in warmth.
- Contoured foot-box is designed to follow natural foot position for added comfort.
- Includes compression sack, storage sack, and internal stash pocket.
- Left- and right-hand zipper options support zip-together functionality.
Best Used For
- Backpackers needing a 0°F-rated bag for cold-weather overnights and changing mountain conditions.
- Climbers and mountaineers wanting a warm, compressible sleeping bag for severe conditions.
- Campers who value windproof, water-resistant protection for shoulder-season or winter trips.
- Users seeking a mummy-cut bag with ventilation options and zip-together compatibility.
- Travelers who want included compression and storage sacks for organized packing and transport.
Specifications
| Bluesign Approved | Yes |
|---|---|
| Breathable | Yes |
| Certification | Responsible Down Standard |
| Comfort Rating | 0°F |
| Draft Collar | Shaped draft collar |
| Draft Tube | Full length down draft tube |
| Dwr Finish | Yes |
| Fabric | GORE-TEX WINDSTOPPER fabric |
| Face Gasket | Adjustable down-filled face gasket |
| Foot Box | Contoured foot-box |
| Hang Loops | Yes |
| Included Accessories | Compression sack and storage sack |
| Insulation | 650-fill down |
| Internal Pocket | Internal stash pocket |
| Membrane | GORE-TEX WINDSTOPPER |
| Membrane Construction | 100% recycled GORE-TEX ePE membrane |
| Shape | Performance Plus Mummy cut |
| Sleeping Pad Loops | Yes |
| Temperature Rating | 0°F |
| Use Cases | Backpacking, camping, winter camping |
| Ventilation | Two-way zipper |
| Water Resistance | Highly water-resistant |
| Windproof | Yes |
| Zipper | #5 YKK zipper with anti-snag slider |
| Zipper Direction | Left hand and right hand zipper options available |
| Zipper Pull | Glow in the dark zipper pull |
Pros
- Comfort rated down to 0°F for cold-weather camping and winter trips
- 650-fill down provides lightweight warmth and compressibility
- GORE-TEX WINDSTOPPER fabric is breathable, highly water-resistant, and windproof
- Shaped draft collar and adjustable down-filled face gasket help seal in warmth
- Compression sack and storage sack are included for packing and storage
- Left and right zipper options support zip-together functionality
Considerations & Trade-offs
- The 0°F comfort rating makes this a cold-weather bag, so it may be more insulation than needed for milder trips.
- The mummy cut is designed for efficiency and warmth, which can feel less roomy than more relaxed sleeping bag shapes.
- The two-way zipper and ventilation features add flexibility, but they also introduce more hardware and adjustment points than a simpler bag.
- The included compression sack helps with packing, but compressed storage is only one part of the system; the bag also includes a separate storage sack for longer-term keeping.
Suggested Comparisons
- Winter sleeping bags
- Backpacking sleeping bags
- Mummy sleeping bags
- Four-season sleeping bags
Suggested Accessories
- Sleeping pad
- Compression sack
- Storage sack
- Sleeping bag liner
Frequently Asked Questions
What temperature is the Bishop Pass Windstopper sleeping bag rated for?
The product is comfort rated down to 0°F.
Is this sleeping bag intended for backpacking or mostly car camping?
It is described as suitable for backpacking, camping, and winter camping, so it is positioned for both mobile and basecamp-style use.
What kind of insulation does it use?
The bag uses 650-fill down, and the down is certified under the Responsible Down Standard.
Does the bag include weather protection features?
Yes. The description lists GORE-TEX WINDSTOPPER fabric, a 100% recycled GORE-TEX ePE membrane, and a DWR finish. It is described as breathable, highly water-resistant, and windproof.
What accessories come with the sleeping bag?
A compression sack and a storage sack are included. The bag also has an internal stash pocket, hang loops, and sleeping pad loops.