When I purchased my cage in excellent used condition (scrubbed and sanitized it prior to using) the previous owner sent bags of the brownish grey paper animal bedding with it. They were all still sealed, large bags. What my daughter does when she cleans the cage, keep in mind she has a grate in the bottom, she puts newspaper on the tray, then a thin layer of the bedding material to absorb the droppings. Works great! It is a big cage, she scrubs it once a week, using a brush and a little dawn in warm water, she scrubs the bottom grate, the liquid is absorbed by the bedding, she removes the tray, rolls up the old bedding in the news paper,then puts down fresh paper and bedding. The bird never comes in contact with the actual bedding, it is about 2 inches below the grate, it's not dusty or damp. Works out well.