Down Sleeping Bags

Down Sleeping Bags

Pemi 20 + Mountain Light "Flow" Series

As is true with all down sleeping bags, getting the down distribution correct is crucial to the safety and warmth of the user.  Gathering data from a variety of scientific testing models such as manikin and loft evaluation is as important as getting perceived warmth information from a variety of test subjects.  This data allows for insightful revisions regarding the design and development of the sleeping bag.

To read more about EN testing and bag “warmth” I recommend looking at Mammut’s fantastic Sleep Well pdf downloads.

For examples of the initial stages of design and concept for sleeping bags, please see the two synthetic bag links below:

Velocity 35

Boreal 20

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