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Cool Bikes Ahoy! – Our picks for 2020

Marmot Hydrogen Sleeping Bag regular dark citron/olive (2019)

ID: 472624
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Product Description

We didn’t think it was possible either, but the Hydrogen is even lighter and more packable than before. The new curved baffles on this bag reduce shifting of the down, allowing this bag to provide enough warmth for cool-weather climbs and backcountry excursions; a new easy-access, fold-down second zipper allows easy ventilation. At just a pound and a half, this bag puts the ultra in ultralight.


  • Outer fabric: Pertex Microlight 20D nylon Ripstop DWR 1.03 oz/yd
  • Lining: 30D nylon DWR 1.09 oz/yd
  • Filling: 800 + cuin fill power goose down
  • tested according to EN 13537
  • Wrap-around foot box for better heating capacity
  • Down Defender to Improve Water-Resistance in Wet Conditions
  • Full-length YKK 2-way zipper
  • Two hang loops
  • Foot size: 99 cm
  • Multi Chamber hood in Nautilus design
  • Collar with easily accessible drawstring
  • Bag capacity: 5.6 litres
  • Incl. compression and storage bag
  • expandable
  • Storage pocket for valuables
  • Shoulder circumference: 155 cm
  • hip circumference: 142 cm
  • foot circumference: 113 cm
season: 3-season sleeping bag  
Sleeping Bag
Category: Down sleeping bag
Form: Mummy form
Temperature Range
Comfort Temperature (°C): 0.9 °C
Max temperature: -4.8 °C
Extreme temperature: -21.9 °C
Upper Material: Nylon
Cover material detail: 100% nylon
Inner Fabric: Nylon
Lining detail: 100% nylon
Filling: Goose down
Special features: PFC-free, Contains non-textile parts of animal origin
Down Mix (Down/Feather)
Fill Power (cuin)
800 cuin  cuin
Sleeping bag: 665 g
Filling: 310 g
Sleeping Bag Dimensions in cm (L x B1 x B2): 206 cm
Height (max): 183 cm
Package size (L x W): 30.48 x 15.24 cm
Model year
Product number
Customer Ratings
4 Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 star
Warm and compact
Varm og kompakt
Translated from Danish To the original

Super warm sleeping bag that neither fills nor weighs, I was surprised at how much heat it holds. It can be used well from early spring to autumn in Denmark and southern Sweden, and may even be too hot in the summer.

Super varm sovepose der hverken fylder eller vejer, jeg var overrasket over hvor meget varme den holder. Den kan fint bruges fra tidligt forår til efterår i Danmark og sydsverige, og er måske endda for varm om sommeren.

Super lighter warm sleeping bag!
Super leichter warmer Schlafsack!
Translated from German To the original

The sleeping bag is very light, cuddly, warm and just right for hiking, if you want to save weight and space!

Der Schlafsack ist sehr schön leicht, anschmiegsam, warm und genau das richtige zum Wandern, wenn man Gewicht und Platz sparen möchte!

Excellent sleeping bag
Excellent sac de couchage
Translated from French To the original

Test in a temperature of 10 degrees, we spent an excellent night. Very sweet and pleasant. Strongly recommended !

Teste dans une temperature de 10 degres, nous avons passe une excellente nuit. Tres doux et agreable. Fortement recommande !

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