For my dogs who like beds, I use Bully Pads--they are thick fleece in several layers, sewn though--no stuffing to pull out! For my cool sleepers and destructo-dogs I use rubber stall-matting cut to fit the bottom of the crate. It stands up to horses and dairy cattle, but provides just a bit more flex than the hard crate plastic does--I also have one girl who managed to pull up and gnaw on her crate pan as if it were a chewy--she cannot do that with the stall-matting!