2 years ago I moved into a bungalow and was unable to flip my mattress as its so heavy, with it being a Harrison spinks mattress. After finding help to flip it I'm devastated to find there is mould growning on the under side. I knew the house was dampish when I moved in but never gave it a thought that it was damage my mattress. I'm planning on getting it cleaned professionally next week but wanted to know what people's thoughts were on mattress cleaning. I've never had it done before and I'm a little worried it may damage my mattress.