Hi Jenny.

Thanks for your comment.

Unfortunately if your bed has a permanent dip or sag its impossible to rectify, without replacing the foam.

This usually happens with cheaper imported foams.

It's unusual it has happened so soon.

I'm guessing from the depth of the mattress that there's only been a very thin layer of memory foam for the comfort layer.

Most foams compress up to 2cm during their lifetime so if you only have say a 2-3cm layer its easily compressed leaving you with no comfort layer at all!

We would always recommend layers of 5cm and above for foams and ensuring that there are multiple layers to ensure progressive comfort.

Having a removable topper can help as you can turn and rotate this, where as most memory and hybrid foams construction method means you can't turn the bed.

We do however recommend rotating the mattress once a month to even out wear.

If you require any further assistance please call the office on 0161 437 4419.

Kind Regards Gary