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

ID: 472625
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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
  • Foot size: 104 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
  • Two hang loops
  • Shoulder: 160 cm
  • Hip circumference: 147 cm
  • Foot circumference: 117 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: 770 g
Filling: 380 g
Sleeping Bag Dimensions in cm (L x B1 x B2): 221 cm
Height (max): 198 cm
Package size (L x W): 30.48 x 15.24 cm
Model year
Product number
Customer Ratings
1 Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 star
Good sleeping bag, but not for the summer
Guter Schlafsack, aber nicht für den Sommer
Translated from German To the original

The sleeping bag can be compressed, but expands in the tent after unpacking but quite quickly again. Ever positive. I bought the sleeping bag for a summer hike. At the quite summery night temperatures he was too warm in the tent. But for spring and autumn I can well imagine that it is pleasantly warm. Practical for this sleeping bag: the hood goes over the eyes and serves at the same time as sleeping glasses / darkening or as animal protection for the overnight stay without a tent. Even tall people (I grew 193cm tall) find space there.

Der Schlafsack lässt sich schon komprimieren, dehnt sich aber im Zelt nach dem Entpacken jedoch recht schnell wieder aus. Schon mal positiv. Habe mir den Schlafsack für eine vorsommerliche Wanderung gekauft. Bei den recht sommerlichen Nachttemperaturen war er mir dann doch zu warm im Zelt. Für den Frühling und Herbst kann ich mir aber aber sehr gut vorstellen, dass es angenehm warm ist. Praktisch bei diesem Schlafsack: die Kapuze geht über die Augen und dient gleichzeitig als Schlafbrille/ Verdunkelung oder als Tierschutz für die Übernachtung im Freien ohne Zelt. Auch große Menschen (ich bin 193cm hoch gewachsen) finden dort Platz.

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