Hi John.

It maybe that John, but its unlikely.

Unless the base has changed or become damaged I doubt it. Changes in sleep pattern like this can usually be attributed to either a change in lifestyle, weight or a change in the quality of mattress. ie a mattress which has degraded.

It would help if you could tell me how old the mattress is. Also memory foam is not really ideally for a heavier sleeper as it will compress and degrade far quicker than a lighter sleeper.

We do have a range of mattresses specifically built for the heavier sleeper that gives both comfort and longevity. Please take a look at our Resilience range.

Please get back in touch John for some more tailored advice and we will be happy to help.

Kind regards,
Amy.