[Bsa-troop85] Camping this weekend -

[Ray Earley]

I want to re-iterate the need for a sleeping pad, and point out how to 
use a blanket if the bag is not warm enough.  As the boys will learn in 
their advancement work, the sleeping bag warmth comes from the "dead 
air" insulation of the bag (the thickness or loft of it when being 
used).  The bottom of the bag then provides very little insulation 
because of the body weight on it.  That's why the pad is so important, 
to give insulation from the cold ground.

As for the blanket, if it is placed on top of the sleeping bag, it will 
tend to push down on the bag and cause it to have less insulating value 
-- so the blanket should go *inside *the sleeping bag to be most 
effective, or it may do more harm than good.

YIS

Ray

On 11/10/2014 1:28 PM, Don Curry via BSA-Troop85 wrote:
> you might even send an additional blanket with them if it is a 20 
> degree sleeping bag.  Boys should have a sleeping mat to keep their 
> backs off the ground... Therma-rest are good mats. 


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