How to Choose Sleeping Bags for Backpacking
Mountain Hardwear Bishop Pass 15 Sleeping Bag
$305.00 – to $325.00
Always on the move, climbers and backpackers can count on the Mountain Hardwear Bishop Pass 15 sleeping bag for an all-around, durable down design that keeps up when temperatures go down.
Key Details
Fill
650-fill-power down
Weight
Regular - Left Zip: 2 lbs. 5.4 oz.
Long - Left Zip: 2 lbs. 7.9 oz.
Long Wide - Left Zip: 2 lbs. 11.9 oz.
Compressed Volume
Regular - Left Zip: 8.1 liters
Long - Left Zip: 8.25 liters
Long Wide - Left Zip: 8.75 liters
Temperature Rating (F)
15 degrees (F)
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- Fluorine-free, 650-fill-power down (80% down/20% feathers) is certified to the Responsible Down Standard (RDS)
- High-performing warmth-to-weight ratio provides lightweight warmth and compressibility
- Performance Plus Mummy cut fits close to your body for efficient warmth while offering more room to move than the standard Performance Mummy fit
- Shaped draft collar and adjustable down-filled face gasket keep warm air in and cold air out
- Anatomically shaped footbox wraps your feet for comfort and warmth
- Premium lining material is soft against the skin
- Durable water repellent (DWR) finish repels water to help keep the down insulation dry
- Reliable and lightweight #5 YKK® zipper with anti-snag slider ensures easy entry and exit; 2-way zipper lets you ventilate the foot section without unzipping the entire bag
- Glow-in-the-dark zipper pull
- Full-length down draft tube prevents heat loss and cold spots along the zipper
- Internal stash pocket; hang loops; sleeping pad loops
- Bag can be zipped to another compatible Mountain Hardwear sleeping bag with a right zipper to create a bed for two
- Includes a stuff sack and mesh storage bag
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View the Mountain Hardwear Bishop Pass Product LineView all Mountain Hardwear Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 15 degrees (F) - ISO |
| Tested Comfort | 26 degrees (F) - ISO |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees (C) |
| Weight | Regular - Left Zip: 2 lbs. 5.4 oz. Long - Left Zip: 2 lbs. 7.9 oz. Long Wide - Left Zip: 2 lbs. 11.9 oz. |
| Shell | 20-denier ripstop nylon |
| Zipper Location | Left |
| Insulation Type | Down |
| Fill | 650-fill-power down |
| Fill Weight | Regular - Left Zip: 1 lb. 5 oz. Long - Left Zip: 1 lb. 7 oz. Long Wide - Left Zip: 1 lb. 10.7 oz. |
| Lining | 30-denier plain weave nylon |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Regular - Left Zip: 72 inches Long - Left Zip: 78 inches Long Wide - Left Zip: 78 inches |
| Shoulder Girth (in.) | Regular - Left Zip: 62 inches Long - Left Zip: 64 inches Long Wide - Left Zip: 70 inches |
| Hip Girth (in.) | Regular - Left Zip: 53 inches Long - Left Zip: 56 inches Long Wide - Left Zip: 62 inches |
| Stuff Sack Size | 8 x 15.5 inches |
| Stuff Sack Volume | 12.25 liters |
| Compressed Volume | Regular - Left Zip: 8.1 liters Long - Left Zip: 8.25 liters Long Wide - Left Zip: 8.75 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
Buying Advice
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Most Helpful Favorable Review
Comfortable with great Features!
AtoZ235 years ago
Received free productThis is an excellent sleeping bag! I was wavering between 4 and 5 stars on my review (explained later on), but the extra features and comfort of this sleeping bag won me over to 5 stars. For reference on this review I am 5'11'' and 170 lbs.
I was able to test this bag at nightly temperatures around 34 degrees Fahrenheit wearing a T-shirt and shorts and was warm all night no problem. With warmer clothing on I wouldn't hesitate bringing this bag further into their comfort and limit recommended temperature ratings. The draft collar around the neck and zipper are great at trapping and maintaining heat for a comfortable sleeping temperature. I didn't need the full mummy hood to stay warm, but it is extremely useful to trap a light weight pillow for the night.
I was perfectly comfortable with the size of this bag with plenty of room. I am a stomach sleeper and didn't have an issue with the length or circumference of the sleeping bag.
The features I really love are the main zipper and the loops on the side of the bag. The main zipper has a large pull ring that is easy to find and use in the dark, but the best part is the design to not get caught on the bag itself. The zipper is designed with a guard to not trap fabric and I was able to zip up and down the bag easily. The loops on the side of the bag were great for fastening my sleeping pad and I didn't have to worry about it slipping around at night. Less movement equals better sleep!
My only complaint with this bag is that I do think it should come with a compression sack. The stuff sack it comes with is alright, but I wouldn't use it backpacking. It saves an extra purchase if you do not already have one! I included a photo of the bag inside the included stuff sack for reference.
Overall this sleeping bag is excellent for the quality and features that are delivered. It is a sleeping bag I will regularly be putting in my pack!
AtoZ23Received free product
CO
31 people found this review helpful
Most Helpful Critical Review
Sierra backpack trip; 9 days over Bishop Pass
Ducy Basin3 years ago
Took a 9 day Sierra trip over Bishop Pass into Dusy Basin in early October. Weather was great although TONS of smoke, very glad we had N95 masks. Temps were down to the Upper 20's at night & the Bishop Pass 15 sleeping bag was terrible. I froze every night even though I had every piece of clothing I had on for warmth. BOTTOM LINE: bad bag rated way too low at 15° that left me cold as temps dipped below 32° .... bad bag! ( zipper also snags, bag is bad enough without having to mention bad zipper ) returned
Ducy Basin
Los Angeles
17 people found this review helpful
Customer Images
AtoZ23
Received free product
Colorado
Comfortable with great Features!
5 years ago
This is an excellent sleeping bag! I was wavering between 4 and 5 stars on my review (explained later on), but the extra features and comfort of this sleeping bag won me over to 5 stars. For reference on this review I am 5'11'' and 170 lbs. I was able to test this bag at nightly temperatures around 34 degrees Fahrenheit wearing a T-shirt and shorts and was warm all night no problem. With warmer clothing on I wouldn't hesitate bringing this bag further into their comfort and limit recommended temperature ratings. The draft collar around the neck and zipper are great at trapping and maintaining heat for a comfortable sleeping temperature. I didn't need the full mummy hood to stay warm, but it is extremely useful to trap a light weight pillow for the night. I was perfectly comfortable with the size of this bag with plenty of room. I am a stomach sleeper and didn't have an issue with the length or circumference of the sleeping bag. The features I really love are the main zipper and the loops on the side of the bag. The main zipper has a large pull ring that is easy to find and use in the dark, but the best part is the design to not get caught on the bag itself. The zipper is designed with a guard to not trap fabric and I was able to zip up and down the bag easily. The loops on the side of the bag were great for fastening my sleeping pad and I didn't have to worry about it slipping around at night. Less movement equals better sleep! My only complaint with this bag is that I do think it should come with a compression sack. The stuff sack it comes with is alright, but I wouldn't use it backpacking. It saves an extra purchase if you do not already have one! I included a photo of the bag inside the included stuff sack for reference. Overall this sleeping bag is excellent for the quality and features that are delivered. It is a sleeping bag I will regularly be putting in my pack!
Yes , I recommend this product
JWB3
Received free product
Frederick, MD
Comfortable Sleeping Bag/Great for Backpacking
5 years ago
bag is very comfortable and great for backpacking. Spent several nights on the trail and the bag kept me warm. The temperatures were in the 30's and had no issues with staying warm. The bag has plenty of room and also liked the additional padding around the neck on the inside to keep the cool air out. It comes with a stuff sack, but I used a waterproof compression bag to keep it dry and a smaller footprint. Overall I really liked the bag and will definitely be my go to bag for future outings. Looking forward to using it in the back country of New Mexico this summer.
Yes , I recommend this product
Anonymous
Can't comment on temp rating
2 years ago
I have not had a chance for a thorough shakedown yet, but did get to spend a couple nights in this bag in the Bob Marshall Wilderness last month (August 2022). Temps only hit maybe 40F at night (very warm!). The ventilation function at the foot works well. While "snug", I did not find the bag to be confining. I found the luminescent zipper pull an unexpectedly useful perk, the zipper gauge worked fine (no snags at all). The bag is light, packs down small, and the construction seems to be very high quality. Will update when I've had a chance to get it out in the 20s and can comment on properness of rating.
Age:65–74
Weight:150–175 lbs.
Height:5'10"
Yes , I recommend this product
West Seattle Hiker
Received free product
Seattle, WA
Light and Warm
5 years ago
This bag was definitely a comfort upgrade from others in the same temperature rating that I've had in the past. It was plenty warm on a winter trip out to the coast. The only thing that keeps me from giving it 5 stars in that based on the description I expected it to be a little roomier. As a side sleeper it is a little difficult to shift from side to side, but that is something I'm used to and the other positives outweigh that minor gripe.
Yes , I recommend this product
cdbon
Perfect Intersection of Cost & Temperature
1 year ago
Was looking for something that was affordable yet offered great comfort and temperature--this is essentially the best bag you'll find on the market at this price point. While the shape is a bit awkward and it could have a little more comfort, temperature is always warm. Haven't been able to test this during an extremely hot night, but it kept me warm through both mountain and desert terrains. If you can't afford a top-end sleeping bag, this is the only choice.
Ducy Basin
Los Angeles
Sierra backpack trip; 9 days over Bishop Pass
3 years ago
Took a 9 day Sierra trip over Bishop Pass into Dusy Basin in early October. Weather was great although TONS of smoke, very glad we had N95 masks. Temps were down to the Upper 20's at night & the Bishop Pass 15 sleeping bag was terrible. I froze every night even though I had every piece of clothing I had on for warmth. BOTTOM LINE: bad bag rated way too low at 15° that left me cold as temps dipped below 32° .... bad bag! ( zipper also snags, bag is bad enough without having to mention bad zipper ) returned
Age:45–54
Weight:175–200 lbs.
Height:6'1"
No, I do not recommend this product
Ravyge
Received free product
Tucson, AZ
Warm & Roomy
5 years ago
Zippers made this bag easy to get in and out of, was roomy without feeling drafty, and it packs down really well for a warm bag. I was able to spend three nights on Mt. Lemon outside of Tucson, AZ on an exposed hillside to find temps in low 20's with windchills down to 2 and still kept warm inside a 3 season tent using only a light sleeping bag liner.
Age:45–54
Weight:150–175 lbs.
Height:5'6"
Yes , I recommend this product
Wood Man
pismo
It Bleeds!! Feathers
3 years ago
I have used this bag for a few campouts and car camping only, Last night I used it for an overnighter, My 1 man tent was smothered in feathers! I was choking on them, I am not exaggerating. Dont buy this bag, move on. Now I now REI will not oblige a refund. Not happy with them either.
Age:55–64
Weight:150–175 lbs.
Height:5'11"
No, I do not recommend this product
RodNapa
Napa CA
Light, warm and packs small
5 years ago
This is an excellent light bag for hiking, trekking, mountaineering, or adventure motorcycling as it is warm enough down to 15 degrees F. I've used this bag way north of the arctic circle in fall and it performed well. The mesh bag is great for storing and the stuff sack compresses it very small but you don't want to store it that way. It's a great all round bag for everything except extreme cold.
Yes , I recommend this product
MFreeman
Dallas, Tx
Great sleeping bag!
4 years ago
Sleeping bag kept me warm on 12 degree nights last week in Colorado. Packs well and comes with stuff sack. Would buy again.
Age:45–54
Weight:150–175 lbs.
Height:5'6"
Yes , I recommend this product
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