Lark Nano 10

Take our most popular 20 degree model, add a full collar and additional fill and you have a solid 3-season bag that still packs smaller and lighter than most bags with a warmer rating. The Lark represents an excellent option for those that tend to sleep on the cold side.

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  • Mummy shape (average width) with #5 YKK two-way, separating zipper with locking sliders
  • Full collar provides an effective seal of down around your neck to trap the heat
  • Trapezoidal footbox allows your feet to fall in a natural pose without compressing the sides
  • Continuous baffles let you position the insulation where you need it
  • 3D contoured hood opens wide for warm nights and cinches tight when the temps start to drop
  • Generous draft tube prevents cold air from seeping past the zipper
  • Overlapping dual-webbing zip guard guides the fabric away from the zipper and eliminates the need for a stiff or heavy fabric layer that can interfere with the draft tube seal


Temperature Rating 10ºF / -12.2ºC
Dimensions 60" / 56" / 38"
Length Reg: 6' 0" / 183 cm
Long 6' 6" / 198 cm
Sleeping Bag Shell Fabric Schoeller Nanosphere®
Lining Fabric Pertex® 30 denier nylon taffeta
Fill Power 850+ Goose Down
Fill Weight Reg 20 oz / 568 g
Long 21.2 oz / 602 g
Average Weight Reg 2 lb 3 oz / 1,003 g
Long 2 lb 6 oz / 1,067 g
Packed Size 7" x 14" | 11L
Zip Side Left
Country of Origin Manufactured in the USA from imported materials
Standard Mummy Sleeping Bag Sizing

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Reviewing: Lark Nano 10

Customer Reviews

  1. Light and Warm

    by Joe on Nov 4, 2013

    I finally got a chance to use this bag in the conditions it was designed for. As a Boy Scout leader, I slept in 21 deg F condtions. I sleep cold and have had trouble staying warm in similar conditons using other bags. But, not this time. I was comfortable for the first time in cold weather! Great quality and service in a light weight bag.
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