Mammut Eiger Extreme Sphere Nordwand Sleeping Bag

Regular price £820.00 Save £-820.00

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The finest down for a hotel under the stars. At the request of the Mammut Pro Team athlete Dani Arnold, Mammut have developed a sleeping bag for bivouac nights on a north face. The Mammut Sphere Nordwand is an extremely light 3-season sleeping bag designed to fit in any backpack as an essential item on all long extreme tours. The premium-quality thermoactive-coated down with an amazing 950 cuin puff strength reflects the body’s heat and provides excellent insulation. Wave-shaped chambers prevent the fine down from slipping to create cold bridges. To make sure no annoying spindrifts disturb your sleep, the SuperDRY™ water-resistant technology keeps both the down and you dry. The hood sits like a beanie on your head, guaranteeing a perfect view of the next pitch even when completely closed.

Delivery 5-7 daysAdditional charge for overseas shipping


  • Inner width in foot area (EN 13537:2012) 49 cm 
  • Construction type : Wave Box 
  • Comfort Rating :-7 °C 
  • Maximum inner width (EN 13537:2012) : 77 cm 
  • Warm collar : No
  • Wave-shaped chambers prevent down slipping of the down and prevent cold bridges
  • Performance Hood with Advanced Visibility: a full view with the hood closed and very good protection against the cold
  • Lightweight Trinity construction provides greater protection and better insulation in foot and head areas
  • ThermaDown™ IR active down reflects body heat back and ensures extremely good insulation
  • HyperDRY™ water-resistant technology keeps the body warm, dry and comfortable in any weather conditions
  • Contains textile products of animal origin (down or leather)


  • Weight 700g (195cm)
  • Main Fabric
  • 100% Polyamide  Filling
  • 90% White goose down | 10% White goose feather  Coating - Lining
  • 100% Aluminium  Lining 3
  • 100% Polyamide  Lining 2
  • 100% Polyamide  Lining
  • 100% Polyester
Mammut Eiger Extreme Sphere Nordwand Sleeping Bag
Mammut Eiger Extreme Sphere Nordwand Sleeping Bag

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