Sleeping Bag Tips: Is Mylar Used In Creating Sleeping Bags?

A reader asks:

I noticed that mylar is used in emergency sleeping bags. I also noticed that it is really light. Why isn’t mylar used in created commercial sleeping bags?

(Scroll down to read responses)

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Tags:Bags, Creating, Mylar, Mylar Bags, Sleeping, Sleeping Bags, Used

This entry was posted on Friday, October 30th, 2009 at 3:26 am and is filed under Sleeping Bag Tips. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Is Mylar Used In Creating Sleeping Bags?”

1. Chirp Says:
   October 30th, 2009 at 3:31 am

   It doesn’t let vapor through. This is an advantage (somewhat) in an emergency where the real insulator is the aluminum in the mylar and the feature is the tiny size of the folded bag.
   But a serious sleeping has got to let the body sweat slowly escape through the pores of the cloth while blocking wind and snow and rain.

2. Alex Says:
   October 30th, 2009 at 3:57 am

   Mylar doesn’t stand up to laundering very well, so it’s not a good choice for sleeping bags that are meant for long-term use. It’s wonderful for situations where being small/light is important, but otherwise, not so much.

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