Yeah. Some folks use astro turf or similar. It's fairly sturdy and soft. It needs to be cleaned a lot which can wear it out. Probably good to have a few sets on hand. The advantage of tile is that it can be sprayed down and sanitized easily but it's a hard surface which can be hard on their feet.
I currently use indoor/outdoor carpet in my tank. Just make sure you eliminate all frayed ends, and vacuum it well to get any loose fragments out of it. Clean up is pretty easy. Pull it out and hit it with a hose and hang it to dry. You'll want 2 sections so as one is being cleaned and drying you can pop in the other. Swap as needed for cleaning.