Bunk bed Cage Idea

I have an old loft bed. I don't usually use the loft of it so I was wondering.... Could I use it for a piggie cage? The way I would attempt to do this is I would take my coro, cut and re score it (And tape it if need be) to the size of the loft bed (43 in. by 77 in approx a 3x6) and put down bedding. THe loft bed is wood but nothing exposed (No corners of rounded edges they are able to nibble on. I wouldn't use any cubes for this. Would it work? Also I could use fleece to cover the wood if need be and as bedding too for easier clean-up.