Gosh I bought this sand for them to defecate but why are they so happy to lie there, luckily I always clean the sand from dirt.😁 If I'm not diligent in cleaning the dirt, maybe they will smell very bad because they are exposed to their own feces. I really don't know what else to do because if I put it in a high place, when they want to defecate, they will be careless. So now I let them lie there and I have to keep cleaning the sand so it doesn't build up and smell, sorry if I always talk about kitten litter.🙏🙏