This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
The camper who desires to "rough it" as much as possible and to carry only the necessities will find it quite a comfort to construct the bedding from grass or moss by weaving it in the manner of making a rag carpet, using heavy twine or small rope as the warp. Two stakes are set the width of the bed or mattress to be made, and a cross stick is attached to their tops. Several stakes are set parallel with the cross stick and at a distance to make the length of the mattress. The warp is tied between the tops of the stakes and the cross stick. An equal number of cords are then attached to the cross stick and to another loose cross stick which is used to move the cords up and down while the grass or moss is placed in for the woof. The ends of the warp are then tied to hold it together. When breaking up camp the cords can be removed and carried to the next camp. - Contributed by W. P. Shaw, Bloor West, Can.
Ill: Loom Constructed of Sticks for Weaving Grass or Moss into a Camp Mattress