• Can be operated with a standard power bank
  • washable
Regular price€39.99
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Spare part for Grüezi bag® DownWool hybrid mummy sleeping bags

The carbon heating element is the first heating element for a sleeping bag in the world that can be connected to a standard power bank using a USB interface. Once connected, the washable heating element warms your feet.

The heating output is limited to approx. 40 °C so that your feet don't start to sweat and become damp, which makes it cold again. The heating part itself was integrated into the foot part: Here the heat is distributed well from bottom to top and the heat source is far enough away from the body to be able to sleep more peacefully.

Can be reordered as a spare part for all Grüezi bag® DownWool hybrid mummy sleeping bags . The “Biopod DownWool - Hybrid Ice Alpine” can be retrofitted with the heating element.


  • Size : 410 cm²
  • Weight : 45g
  • Care : The carbon heating element is washable at 30 °C.
  • Heating time : The heating element heats up to a maximum of 40 °C to achieve an optimal feel-good climate. When used as a sleeping bag liner, approx. 15-30 minutes are enough, after which the sleeping bag stores the heat and stays warm inside the sleeping bag for a night.
  • Info : The operating time of a power bank with 5,000 mAh is approx. 1.8 hours/with 10,000 mAh approx. 3.6 hours.

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