Hi all I'm new to the cat site here, but I'm really hoping someone might be able to help me. I have 4 cats all of them get on well together. Just these last few days the youngest cat who is 6 months old and female not yet spayed, has started to use my youngest child's bed as her litter box, she has always used the box before I've never had any issues with her before. I can't understand why her behaviour has suddenly changed? She still uses all the litter boxes as well. We have 3 boxes and I always keep them clean and haven't changed litter either, can anyone help please??