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SITKA HyperDown Sleeping Bag
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$616.00
List Price: $880.00
You Save: $264.00 (30%)
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SKU: 600401
Overview
Built for deep-winter conditions, this sleeping bag is designed to keep hunters warm when temperatures drop hard and camp time stretches long. It uses Allied Down 900-fill goose down for a strong balance of warmth-to-weight and packability, while ExpeDRY treatment is intended to help in wet weather. The 15-degree design also leaves room for extra layers, making it a practical choice when your clothing system needs to work with the bag, not against it. Thoughtfully placed zippers let you free your arms for tasks like glassing or cooking without fully leaving the warmth inside.
Why Hunters Choose the Sitka Gear
Deep-winter Use
A 15-degree temperature rating
Allied Down
900-fill goose down supports warmth-to-weight
Expedry Treatment
Is intended to help in
Room Additional
Layers when temperatures drop further
Arm-free Zipper
Design allows glassing or cooking
Key Features
- 15-degree sleeping bag designed for deep-winter use and added layering room.
- Allied Down 900-fill goose down for warmth-to-weight and packability.
- ExpeDRY treatment for synthetic-like performance in wet weather.
- Full-body design intended to keep you warm in severe cold conditions.
- Thoughtfully placed zippers free your arms for glassing or cooking.
Best Used For
- Serious winter hunters needing a 15-degree bag for deep-cold overnight camps
- Glassing from camp while staying zipped in and keeping arms free for optics
- Hunters layering up inside the bag when temperatures drop well below freezing
- Wet-weather backcountry users wanting down insulation with ExpeDRY treatment
- Cold-season hunters prioritizing packability and warmth-to-weight in a premium sleep system
Specifications
| Arm Access Zippers | Yes |
|---|---|
| Down Fill | Allied Down 900-fill goose down |
| Layering Compatibility | Accommodate additional layers |
| Temperature Rating | 15deg |
| Treatment | ExpeDRY |
Pros
- Designed for deep-winter use with a 15-degree temperature rating
- Allied Down 900-fill goose down supports warmth-to-weight and packability
- ExpeDRY treatment is intended to help in wet-weather conditions
- Room for additional layers when temperatures drop further
- Arm-free zipper design allows glassing or cooking while staying inside
Considerations & Trade-offs
- Designed for deep-winter use, so it may be more bag than needed for milder conditions or shoulder-season trips.
- The 15° design is built to accommodate extra clothing layers, which can add bulk inside the bag if you run it without them.
- The arm-access zippers add versatility for glassing or cooking, but they also introduce more hardware and potential points of complexity than a simpler mummy bag.
- Premium materials and features place it at a higher price point, so it is a specialized investment rather than a general-purpose sleeping bag.
Suggested Comparisons
- Winter sleeping bags
- Cold-weather sleeping systems
- Expedition sleeping bags
- Down sleeping bags
Suggested Accessories
- Sleeping bag liner
- Compression stuff sack
- Sleeping pad
- Pillow
Frequently Asked Questions
What temperature rating is the HyperDown Sleeping Bag designed for?
The product is described as the HyperDown 15 Sleeping Bag, so it is the 15-degree version. No additional temperature-rating details are provided in the source data.
What insulation does this sleeping bag use?
It uses Allied Down 900-fill goose down, which the product description says is chosen for warmth-to-weight and packability.
Does the HyperDown Sleeping Bag include any treatment for wet conditions?
Yes. The description says it features ExpeDRY treatment, which is described as providing synthetic-like performance in wet weather. No further technical details are provided.
Is this sleeping bag meant to fit over extra layers?
Yes. The 15-degree bag is described as being constructed to accommodate additional layers in your clothing system when temperatures drop.
Are there features that let you use your arms without fully leaving the bag?
Yes. The description says thoughtfully placed zippers free your arms to enable glassing or cooking.