Hi thank you so much for this response. I appreciate you taking the time to help. I am so glad you told me about jute and asthma because my teen has asthma. I don't want to do something that they might chew that is not safe for them. Also they are pooing all over their enclosure - even though they are supposedly potty trained, so I would be washing that sheet.. daily? I am cleaning up in their daily. I feel like a sheet would also get pulled up and be a huge project to keep in place. They also have access by the way, to a bedroom, much of the time, and they don't poo when out there much, so...they are partly trained. I am looking for a floor covering for their personal space. I guess anything I get will either be unsafe for them or get chewed up by them.