Thanks guys :) I don't know for sure what caused it, Although i'm guessing its something to do with when my Central heating went down. Temps must have dropped when i was sleeping, I feel really bad for it but i'm getting him a Viv of my uncle in the next few days. Should say sorry. A house for a cold... Good deal I think! Haha but so glad hes in the clear now with a fat belly of mouse :)