I just used actual cotton sheets. I work at a Hot Springs/hotel and they always have a bunch of mismatched sets in the up for grabs box. I also use a lot of leaves and then top it with twigs/wood chip. I harvested the materials from the local refuse transfer site that is just down the road from the Hot Springs(I really hate to go home with an empty truck) . I have also added goat, chicken and sheep manure and bedding in the past. I am constantly adding sheet mulch as the grass starts to come in. My original granite soil has become dark rich humus teaming with life. I also like to sheetmulch on contour. These areas become swales and then later terraces as I mulch the ditch in to get larger areas .I have laid rotting logs down, manure and then sheetmulched that all on contour many times as well. This does take a year or two to become ready for plants though. It works well for me.
