In case you have you not already read the initial article explaining important concepts...
read the following article first:
Basics Of Survival - Bug Out Bag
(this system did not exist when I was in).
Post script: One very important thing I had initially forgotten to put in here...
you simply must have protection from sharp or puncturing objects
on the ground before placing the sleeping bag on top.
Should the Gortex outer bag be breached in wet conditions...
you could have a very bad night.
A condensed foam rollable mat on top of a pre-cleared area would suffice.