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Gormsson -10° Mummy sleeping bag

A classical and well-tried winter bag

GBP 210

Stock available from our online retail partners

  • Description
  • Facts
  • Measurements
  • Material


A classical and well-tried winter bag

Gormsson -10° Mummy is the next generation of the classic Nordisk sleeping bag. Together with the off-set double box chamber construction and the Norguard S-PO 85 fibre filling offers high insulation properties. The tough, yet lightweight Nylon Rip-stop nylon shell makes the bag durable and the soft touch lining makes it comfortable to sleep in. The bag has an integrated shark-fin foot box keeping your feet warm, while your head stays warm in the 3D winter hood with concealed drawstring. The foot box offers easy ventilation that allows the feet to cool down. Internal thermal collar and chest pocket. The secondary shoulder zipper keeps you warm without compromising your movability when sitting in the bag.


  • Mummy shape with 3D hood
  • Spacious shark-fin foot box with extra ventilation
  • Side zip, 2-way
  • Lightweight nylon rip-stop shell and soft touch lining
  • Secondary shoulder zipper
  • Internal chest pocket and thermal collar

The story behind the name

Harald ”Bluetooth” Gormsson was born in 935 as the son of King Gorm the Old and Thyra Dannebod. As King of Denmark and Norway he erected the very famous Jelling stone in Denmark, where the runic inscription says: “King Harald ordered this monument made in memory of Gorm, his father, and Thyra, his mother. The Harald who ruled the whole of Denmark and Norway and converted the Danes to Christianity.”


Sleeping bag type : Winter


  • Comfort : -6 ℃
  • Limit : -10 ℃
  • Extreme : -30 ℃
  • Tested according to European norm EN 13537


  • Zipper position : Left
  • Zipper length : Side Zip (closed footbox)

Sleeping bag shape : Mummy

Construction : Offset Double Box



  • Length : 205 cm
  • BodySize : 190 cm
  • Shoulder width : 73 cm
  • Foot width : 55 cm


  • Total weight : 1900 g
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  • Official weight : 1750 g
  • Indicates the total weight of the product and packsack, with only the accessories needed for normal use (extra packsacks, bonus packs etc. excluded.)

Pack size

  • Diameter : 25 cm
  • Length: : 30 cm



This products is PFC free


  • Composition : 100% nylon
  • Construction : Rip Stop
  • Denier : 20D
  • Colour : Artichoke Green/Black


  • Composition : 100% nylon
  • Denier : 30D
  • Colour : Mustard Yellow


  • Name : NorGuard S-PO 85
  • Type : Fibre