Not that I'm aware of. I have my chins on a wire floor with some sea grass mats, so I don't use any bedding. Just newspaper that lines the drop pan, but the chins don't have any access to it. Them eating the bedding was one of the reasons I use the wire cages. Don't get me wrong though, solid bottom cages and wire bottom cages both have their advantages and disadvantages. Wire bottoms are better in the way that you don't have to clean them every single day, but they can cause pododermatitis if the chin has no place to rest its feet. Solid bottom cages are more comfortable, but have to be cleaned every day, also there is them eating the bedding. It is really a matter of preference.
In the case of baby chins, they should really be housed in solid bottom cages. My kits are in wired bottom cages, but there is plenty of sea grass mats, and smaller openings than that of most cages. If you wish to go with wire bottom cages, I would reccommend Martin's Cages.
In either case, be sure the cages are free of plastic parts. Plastic is toxic in large quantities, and has been known to cause intestinal obstructions. I'm not an expert, but I have been raising chins for almost 10 years, and I still have one of my original 2.
