We made a sleeping bag that you can carry around and place it anywhere in the world. It will be given to you by default, when you start a new game.
The mechanic works exactly like the campfires, except you can rotate (R) the sleeping bag to place it more precisely.
http://www.youtube.com/watch?v=YSDOUgYvLIw&feature=youtu.be
Thank you,
Devs