I have recently been jumping around from bedding to bedding and am returning to aspen (in it's shredded form) from Native Earth. It is shipped so that it covers 4.38 cu feet, and I have been having difficulty figuring how much that would cover in an enclosure. Any interperations of how much space this would hold (per bag) in your enclosures and for how long would be helpful, I will figure how much I will need for my specific situation.