Big Agnes Grouse Mountain 15 Degree Sleeping Bag

Item # BGA93401M   |   Customer Rating: Read 1 review  |    Bookmark and Share

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Starting At: $259.95

Sale Price:

$182.95 - $196.95

You save up to 29%


In Stock! Ships Thursday, April 17.

Key Features

  • Integrated half pad sleeve with unique design keeps you securely attached to the pad from the hips up while allowing freedom of movement for your legs, more like a traditional mummy bag.
  • Half pad sleeve with adjustable strap holds ANY 20" wide rectangular or mummy shaped pad (sold separately)
  • Mummy shape decreases weight and packed size
  • Cotton storage sack and nylon stuff sack included
  • Built in pillow pocket holds a fleece or Big Agnes pillow (sold separately)
  • Interior fabric loops for sleeping bag liners
  • 70" YKK #8 zipper
  • Mate together any of Big Agnes left and right zip bags with the same size zipper
  • No-draft collar seals around neck to keep cold air from sneaking in
  • No-draft wedge insulates the connection betwen the bag and the pad
  • No-draft zipper tube insulates along the length of the zipper
  • Shell: Down proof, nylon microfiber rip-stop. WR surface treatment to repel water
  • Lining: Soft, breathable down proof nylon with stain resistant finish
  • Pad sleeve: Nylon rip-stop. WR surface treatment to repel water


Recommended Use: Three-Season Backpacking or Camping
Item Weight: Regular: 3 lb 0 oz
Long: 3 lb 6 oz
Type: Down
Packed Size: 8" x 17.5"
Shell Material: Nylon Microfiber Ripstop with WR treatment
Liner Material: Stain-Resistant Nylon
Fits to Length: Regular: 5' 10"
Long: 6' 6"
Fits to Girth: Regular: 67.5"
Long: 72.5"
Fill Material: 600 Fill
Temperature Rating: 15 Degrees F
Other: Stuff Sack and Storage Sack Included
Warranty: Lifetime

Product Highlights

With warm, compressible goose down insulation and a thermally-efficient mummy cut, the Big Agnes Grouse Mountain 15 Degree sleeping bag has the features and functionality that make it ideal for three-season backpacking and camping.

The Grouse Mountain 15 Degree bag is insulated with 600 fill goose down. Renowned for their compressible properties and efficiency in providing insulation, the feathers and fibers of down have an incredibly soft, comfortable feel and, despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. Though down fill is susceptible to the effects of moisture, losing much of its performance qualities when damp or wet, the Grouse Mountain’s nylon shell is coated with a water-resistant treatment to combat the effects of moisture.

Insotect Flow technology is used in the Grouse Mountain 15 Degree bag to help eliminate cold spots, regulate the movement of down inside the baffles and offer better body heat distribution. Strategically placed Flow Gate construction eliminates lateral and vertical down shifting by using vertical chambers with Flow Gates to control the position and density of the down insulation.

In a traditional sleeping system, the bag lies on top of a sleeping pad. In this configuration, many people find themselves rolling off the pad at night. Plus, the insulation on the bottom of the bag is compressed by the sleeper's weight. Once compressed, the fill loses most of its insulating properties. The Big Agnes Sleep System is different, joining the bag and pad together. The pad slides into a sleeve on the bottom side of the bag, supplying insulation to the bottom of the bag while the top 2/3 of the bag is insulated like a traditional sleeping bag. This design provides a secure foundation so you can roll, twist and turn freely during the night without ever rolling off your pad. It also prevents the bag from twisting and engulfing you in an uncomfortable mess. Big Agnes uses this system throughout their entire line of sleeping bags.

The Grouse Mountain 15 Degree bag is available in Regular (fits up to 5' 10") and Long (fits up to 6' 6") lengths. A half-sleeve design allows you to mate the bag with any mummy-shaped or rectangular pad (sold separately) so long as it isn't wider than 20". NOTE: Because the bottom of the Grouse Mountain 15 Degree bag is completely uninsulated, it MUST be used with a pad of a suitable R-value in order for it to meet its 15 degree temperature rating.

A number of performance features equip the Grouse Mountain 15 Degree bag for efficient insulation. A contoured, insulated hood keeps your head warm and a no-draft collar keeps cold air from creeping in the top of the bag and reaching the interior of the bag. A full-length draft tube sewn behind the zipper further ensures that cold air remains outside of the bag. A no-draft wedge protects the connection between the bag and the pad, so that cold air doesn't sneak in between the two. A built-in pillow pocket holds clothes or a Big Agnes pillow (sold separately), providing a comfortable resting place for your head and neck.

A stuff sack and storage sack are included with each Big Agnes Grouse Mountain 15 Degree sleeping bag.

Styles available: Long Left Zipper, Regular Left Zipper

Big Agnes part numbers: BGMLL11, BGMRL11

Product Reviews

Average Customer Rating:
Big Agnes Grouse Mountain 15 Degree Sleeping Bag

Average customer rating:
Number of reviews: 1

Individual Customer Reviews:

Displaying Reviews 1-1 of 1


    Likes: Great sleeping bag with a sleeve for sleeping pad.

    Dislikes: Nothing