Hi Alan,

Unfortunately no matter how many layers you add to the mattress we always recommend regular mattress maintenance.

We recommend turning and rotating mattresses every month, this evens out wear and ensure the mattress ages consistently.

We know its not the most exciting of chores but really will pay dividends in the long run.

There are some one sided mattress in the contemporary and foam world where this is not possible, we however use a dual construction method with turnable and rotatable removable toppers to minimise this.

Toppers themselves, where possible should be rotated and turned also.

There's a link here for far more detail around mattress maintenance as well Allan.

Hope that helps.

Lee (John Ryan Contemporary) 0161 437 4419