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Big Agnes Echo Park 40 Sleeping Bag


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The lightest and most packable of their synthetic Park series bags, the Big Agnes Echo Park 40 Sleeping Bag gives you the luxury you want for summer nights under the stars, at a price that won't drop your jaw. With built-in wiggle room, the Echo Park comes in a long and wide style, meaning you can toss and turn throughout the night without feeling restricted, and the added Flex Pad Sleeve and Pillow Barn ensure that no matter where you move, your sleeping pad and camping pillow will go with you. Zip-off the top of this 40-degree bag for a synthetic camp comforter, complete with corner hand pockets that let you wrap it tightly around your shoulders or combine it with the Park Bag Wedgie to create a lightweight, traditional mummy-style sleeping bag.


  • A 40-degree sleeping bag built for summer nights outside
  • Wide long construction adds extra space for maximum comfort
  • Zip-off option allows you to create a quilt or mummy bag with the Park Bag Wedgie (sold separately)
  • Flex Pad Sleeve is compatible with multiple pad widths
  • Free Range Hood lets you lift your head without having to unzip the bag
  • Pillow Barn stops runaway pillows in their tracks
  • Two-way, double zippers offer easy entry and allow you to zip your bags together
  • Storage bag and stuff sack - Included

Construction + Materials

  • Shell: Nylon ripstop with a water repellent finish
  • Lining: Cotton/Polyester
  • Insulation: FireLine Max Synthetic Insulation

Compatible Accessories


  • Temp Rating: 40° F
  • Shape: Rectangular
  • Best Use: Car Camping
  • Gender: Unisex
  • Zipper Side: Dual
  • Bag Size: Wide Long
  • Fits Up To: 6' 6"
  • Bag Weight: 3 lbs 2 oz
  • Fill weight: 1 lb
  • Compressed Size: 8" x 6.5"
  • Stuff Sack Size: 7.5" x 15"
  • Pad Size: 25" - 30" x 78"
  • Shoulder Girth: 81"
  • Hip Girth: 75"
  • Knee Girth: 66"