The bedding is vetbed gold which is a bedding originally made for ill and elderly cats and dogs. It wicks the urine through like fleece does onto towels below. It's great if you can get it! I think they've only recently started selling it in the US.
How is the vetbed on smell? I had tried using fleece and mattress pads but it smelled so bad that I went to Aspen shavings. How about the vetbed? I see they sell it on Ebay.