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  • Underside insulation has been eliminated and replaced with a sleeve for a Big Agnes pad or any 25-in.-wide sleeping pad (sold separately)
  • Integrated full pad sleeve has stretch fabric panels on the sides to accommodate different pad thicknesses
  • Unique quilt-like construction and rectangular shape turn your sleeping bag into a backcountry bed; compartmentalized, horizontal baffled construction prevents down shifting
  • DownTek water-repellent down repels water while maintaining insulating value; DownTek absorbs 30% less water and dries 60% faster than untreated down
  • DownTek provides antimicrobial and antibacterial protection; environmentally safe PFOS/PFOA free Nano treatment technology
  • Free Range Hood design gives you the freedom to lift your head while snuggled in the hood
  • New cordlock lets you un-cinch the hood with one hand
  • Down-filled collar at top seals around the neck to prevent warm air from escaping and cold air from entering
  • Large draft tube located behind the zipper prevents warm air from escaping and cold air from entering
  • Continuous oversize draft wedge insulates the connection between the bag and pad to prevent cold air from entering
  • Double zippers allow entry from either side of bag; when unzipped, top of bag can be used like a comforter
  • Thanks to their double zipper design, all Big Agnes Park bags mate easily
  • Pillow Barn keeps your pillow from slipping away during the night
  • Interior fabric loops keep sleeping bag liner from twisting and bunching (liner sold separately)
  • Exterior loops for hang drying or storage
  • Includes mesh storage sack and nylon stuff sack


View all Big Agnes Men's Sleeping Bags

REI membership


Best Use Backpacking
Temperature Rating (F) 30 degrees Fahrenheit
Temperature Rating (C) -1 degrees Celsius
Weight 3 lbs. 14 oz.
Shell Ripstop nylon
Zipper Location Left
Insulation Type Down
Water-Resistant Down Yes
Fill 600-fill DownTek down
Fill Weight 18 ounces
Lining Nylon taffeta
Sleeping Bag Shape Semirectangular
Fits Up To (in.) 78 inches
Shoulder Girth (in.) 80.5 inches
Hip Girth (in.) 75 inches
Stuff Sack Size 9 x 20 inches
Stuff Sack Volume 21 liters
Compressed Volume 11.5 liters
Gender Unisex
Rated 2 out of 5 by from BA Deer Park bag Just completed a 50 mile hike where temperatures were around 45 at night. Although roomy and accessible with two zippers, this bag was drafty along the zipper lines and I had to sleep with base layers, a down jacket, wool cap and wool socks. I think the insulated pad works well with this bag but I will be returning this bag to REI.
Date published: 2016-08-21
Rated 5 out of 5 by from True to its temp rating, roomy, light weight I should not comment on this sleeping bag by itself because the sleep system is a system. So I need to first describe how I used it. On trips when I expect freezing nights, I usually put a sleeping pad or two pads with total R-rating about 3 to 4. For example, I used an insulated 3+"Big Agnes air pad (R-rating almost 4, I think) in the long past. And after that BA pad leaked, I used a cheap 1/2" closed cell foam (R-rating nearly 2 I think) and a Nemo air pad (rated with 30 degree temp, they don't use R-rating but my guess is it's nearly R 2). With the above system, I was very in many freezing nights (temp in 20's). The features I liked for this BA sleeping bag: 1) I like the idea of but having the bottom but instead use a sleeve to integrate the pad. 2) I toss in the night and the rectangular shape feels comfy. Without the bottom, the rectangular is about the same weight and bulk as a comparable mummy but with more rooms to toss inside. The down fill that I had was the regular old down fill without any water resistance treatment (I have my BA bags for years now). This didn't prove to be an issue for me even a lot of my trips were rainy -- I just stuff the down bag in a 8" x 21" wet bag.
Date published: 2017-01-03
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