Yesterday we went out shopping. The possibities were just a new mattress or a complete new bed (we prefer slat base).
Well we decided to go with a complete new bed - in KING size they are getting hard to get in Oz, most of them are imports.
So in a maximum of 8 weeks we'll have a new bed and along with that goes the need to find king size sheets and underlay, we already have a king size feather doona (although we find it small on the current queen size bed I don't think they make super king size stuff, if they do we don't get it here).
Anticipating some good night's sleep in the near future!