I have 3 playpens, a toodler bed, my futon and 2 cots. Each child has their own blankets for under them and over them and I don't mix them. Even the child who sleeps on the futon has a blanket under him and over him so he isn't in direct contact with my futon. I'm just like that, germs, ew! It's silly because they share germs all day, I know that. I wash all the bedding every Friday night.