Value-added compositions such as mulches, insulation, and animal bedding may be produced from cotton waste. These compositions are formed from mixtures of at least two cellulosic, biofiber components, wherein one or both of the components are fiberized. The compositions of this invention include mixtures of: a. a first cellulosic component of cotton byproducts, and b. a second cellulosic component which is visible to the naked eye, and which includes hay, grass, kenaf, straw, plant residue remaining following the harvest of crops such as cereal grains, rice, soybeans, and grass seed, wood, sawdust, wood pulp, paper, or mixtures of any of the above, wherein one or both of the first or second cellulosic component are fiberized and the fibers of the fiberized component are intermixed with and entangled about the other component in a 3-dimensional matrix.