Grey Dragon website shares a detailed directions and pictures how to build a rope bed that can bed taken apart and reassembled in another location. This design is very similar to bed frames used in the past with a straw or feather stuffed mattress.

Click here to read article:
http://www.greydragon.org/furniture/beds/ropebed.html

The Year Of Mud:Cob Houses & Natural Building blog shares how to make a mattress from traditional materials.

Click here to read article:
http://www.small-scale.net/yearofmud/2009/09/11/how-to-make-your-own-35-straw-mattress/#.UUKSR1fm9A4