Zpacks Classic Sleeping Bag vs Mountain Hardwear Bishop Pass 15 Sleeping Bag

Editorial Team
Last modified at May 24, 2026
When it comes to backpacking, a reliable sleeping bag is essential for a good night's rest. The Zpacks Classic Sleeping Bag and the Mountain Hardwear Bishop Pass 15 Sleeping Bag are both popular choices among outdoor enthusiasts. This comparison will help you understand the strengths and weaknesses of each, ensuring you make an informed decision based on your specific needs.

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Zpacks Classic Sleeping BagMountain Hardwear Bishop Pass 15 Sleeping Bag
Zpacks Classic Sleeping BagMountain Hardwear Bishop Pass 15 Sleeping Bag
Weight

Slim-Short: 12.3 oz
Slim-Medium: 12.3 oz
Standard-Short: 13.1 oz
Standard-Medium: 13.1 oz
Standard-Long: 13.1 oz
Broad-Medium: 14.6 oz
Broad-Long: 14.6 oz

Regular: 2 lb 5.4 oz / 1060 g

Fill Power

900

650

Packed Size

Slim: 60 cu in
Standard: 60 cu in
Broad: 72 cu in

Stuffed: 15.5 x 8 in / 39 x 20.25 cm; compressed volume Regular: 494 in³ / 8.1 L

Shell Material

Ventum Ripstop Nylon

20D ripstop nylon, DWR finish

Fits Up To Height

Slim-Short: 5 ft 6 in
Slim-Medium: 6 ft
Standard-Short: 5 ft 6 in
Standard-Medium: 6 ft
Standard-Long: 6 ft 6 in
Broad-Medium: 6 ft
Broad-Long: 6 ft 6 in

Regular: 72 in / 183 cm; Long: 78 in / 198 cm

Warranty

2 Years

Limited lifetime warranty for practical life of product

Zipper Type

3/4 Length Zipper

Two-way zipper with draft guard

Down Treatment

Responsible Down Standard certified

Fluorine-free

Baffle Construction

Vertical baffles on the upper body, horizontal baffles in ft box

Full-length down draft tube; manufacturer does not list a separate baffle construction spec

Foot Box Shape

Rectangular

Contoured

Hood Type

Hoodless

Performance Plus Mummy cut with shaped draft collar and adjustable down-filled face gasket

Water Resistance

PFAS free C0 durable water repellent

DWR finish

Draft Collar

No draft tube necessary; elastic neck cord cinches to keep out drafts

Shaped draft collar with adjustable down-filled face gasket

Temperature Rating

30°F (-1°C) option shown

15°F / -9°C

Comfort

Zpacks Classic Sleeping Bag

3.8/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

3.9/ 5.0

Comfort is crucial for a good night's sleep, especially after a long day of backpacking. A comfortable sleeping bag can make a significant difference in your overall outdoor experience. Both the Zpacks Classic and the Mountain Hardwear Bishop Pass offer unique comfort features. The Zpacks Classic is praised for its roomy rectangular foot box and ergonomic design, which many users find comfortable. However, some users report issues with the zipper and down movement. The Bishop Pass, on the other hand, offers a cozy, roomy fit with a draft collar for temperature regulation, though some may find it slightly restrictive. Overall, both sleeping bags provide a comfortable experience, making this category a tie.

Warmth

Zpacks Classic Sleeping Bag

3.1/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

3.9/ 5.0

Warmth is a critical factor for backpacking sleeping bags, as it directly impacts your ability to stay comfortable in various weather conditions. The Mountain Hardwear Bishop Pass 15 excels in this category with its 15°F rating and extra layer of down, which helps retain heat well in cold conditions. While some users found it too warm for milder nights, its overall warmth performance is strong. The Zpacks Classic, although it has positive feedback for warmth, has more mixed reviews with some users experiencing cold spots and drafts. Therefore, the Bishop Pass is the clear winner in terms of warmth.

Durability

Zpacks Classic Sleeping Bag

2.9/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

4.2/ 5.0

Durability ensures that your sleeping bag can withstand the rigors of the trail and last for many trips. The Mountain Hardwear Bishop Pass 15 stands out with its 20D nylon shell and DWR coating, providing strong abrasion resistance and a snag-free zipper. Users consistently report that it holds up well over time. The Zpacks Classic, while it has some durable features like water repellent down, receives more mixed reviews regarding its durability, with some users reporting issues with the thin fabric and stitching. Thus, the Bishop Pass is the winner in durability.

Packability

Zpacks Classic Sleeping Bag

4.6/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

3.8/ 5.0

Packability is essential for backpackers who need to save space and weight in their packs. The Zpacks Classic Sleeping Bag shines in this category with its ultralight design and incredible compressibility, making it easy to pack down to a very small size. Users consistently praise its lightweight and compact nature. The Bishop Pass, while it also compresses well, is not as lightweight or compact as the Zpacks Classic. Therefore, the Zpacks Classic is the clear winner in packability.

Versatility

Zpacks Classic Sleeping Bag

4.8/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

4.4/ 5.0

Versatility allows a sleeping bag to adapt to various conditions and preferences, making it a valuable feature for backpackers. The Zpacks Classic offers a three-quarter length zipper and can be used like a quilt or zipped up for chilly nights, providing flexibility in different weather conditions. It also comes in multiple sizes and temperature ratings. The Bishop Pass, while versatile with its vented gills and ability to unzip fully, does not offer as many options as the Zpacks Classic. Thus, the Zpacks Classic is the winner in versatility.

Ease Of Use

Zpacks Classic Sleeping Bag

2.2/ 5.0

Mountain Hardwear Bishop Pass 15 Sleeping Bag

3.2/ 5.0

Ease of use is important for a hassle-free experience, especially when setting up camp after a long day of hiking. The Mountain Hardwear Bishop Pass 15 is generally easier to use with its two-way zipper and venting options, making adjustments straightforward. The Zpacks Classic, however, receives more complaints about its zipper and elastic closure, which some users find tricky to manage. Therefore, the Bishop Pass is the winner in ease of use.

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Conclusion & Final Verdict:

After comparing the Zpacks Classic Sleeping Bag and the Mountain Hardwear Bishop Pass 15 Sleeping Bag, it's clear that each has its strengths and weaknesses.

Choose the Zpacks Classic if:

  • You prioritize lightweight and packability
  • You want a versatile sleeping bag that can be used as a quilt
  • You need a highly compressible sleeping bag for long backpacking trips

Choose the Mountain Hardwear Bishop Pass 15 if:

  • You need a warmer sleeping bag for colder conditions
  • You prefer a more durable sleeping bag with a snag-free zipper
  • You want a sleeping bag with a better warranty and ease of use
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