I think I found the reason for the habitat cleanliness warnings that I, and I know many of you, have been constantly getting. The bedding straw! I removed the shelter and bedding, they were linked together, then called the keeper to clean and cleanliness went to 100%. I replaced the shelter and bedding and now everything is fine. We will see if it lasts, but it actually makes sense that the bedding would need to be replaced occasionally.