The Cumulus / Chroniquesanscarbone Comforter M400 cheaper than anywhere else, on its creator's website
610g ultralight modular comforter, developped in partnership with Cumulus
In stock, shipped under 24h
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How is it possible to sleep comfortably in summer, when you camp one night in a warm valley, and then move to a high altitude cold bivouac the day after? How can you convert a part of your sleeping system into a survival tool for serious winter conditions? Answer: use a comforter!
The M400 is part of the "Ultralight Modular Line" series that I created with Cumulus. The modular comforters we developed have been adopted by hundreds of enthusiast ultralight hikers.
Weighing only 610 g, made of a 27g/m² Pertex Quantum shell and including 400 g of our best 850 cuin goose down, the M400 is a kind of Swiss army knife in terms of insulation. It’s down filling ratio is optimized for the quilt mode. It has a wide amplitude of use, from 25°C to -6°C.
Integrated elastics allow to create a footbox on one side and a neck collar on the other, loops being used to create a tube. The result is a quilt, a hoodless sleeping bag, not insulated in the back. With this M400, when it gets cold, it is useful to shake the quilt in a U position before sleeping, in order to put more down on the top. Comfort use in quilt mode is around 0°C. Of course you can reach even lower temperatures, depending on the clothes you wear while asleep.
Rectangular shape is a deliberate choice: it creates, in case of an emergency , an armour-like insulation layer (torso, arms and head) when used under a wide jacket. In static use, this "jacket mode" allows you to deal with a -12°C standby. The perfect backup for quick but careful climbers.
It is also possible to use it inside of a classic sleeping bag to make it winterproof, and under a hammock... and of course , as a comforter at home : expect serious heating savings!