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An ultralight sleeping bag of a mere 8oz?
A thru hiker's or peak bagger's dream come true?
We think so. Combine this 3/4 length Arc concept sleeping quilt with a Skaha Down Sweater or Skaha Plus and stay warm to at least 40 degrees F.

Built to cover your body up to the lower chest, the Arc AT has optimum overlap for the down sweater and quilt interface, essential for a good nights sleep after a long day on the trail.

Worn over or under a jacket, you will find this combo to be one of the easiest to deploy sleep systems. Such convenience is perfect for brief rest stops during an adventure race or for a smooth transition between camp chores and tent time.

If this whole arrangement seems a bit too minimal for your adventures, check out these 'traditional' down quilts.


  40° F
Fits to height 5'4" 6'0' 6'6"
Useable width:




fill weight 3.5oz 4oz 4.5oz
total weight,
quantum .8
7oz 8oz 9oz
total weight,
Quantum 1.0
7.5oz 8.5oz 9.5oz
Total weight,
epic by nextec
8oz 9oz 10oz
stuffed size 6x4 6x5 6x6
baffle height .75" .75" .75"
price $269 $298 $327

Go here for more information about this backcountry quilt and Nunatak's Arc Concept.

To learn more about our down sleeping bags in general, read this

To help you decide which shell fabric will work best for you, see here

This page is about care, maintenance and storage of down equipment.

Nunatak is dedicated to custom design and manufacture of quality back country sleeping bags and garments
utilizing 800+ goose down and sophisticated fabrics.

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