Most mattresses, whether medium or high quality, offer a manufacturer's warranty of around 7 to 10 years. Also depending on the mattress material, latex, memory foam...
Although it does not only depend on that warranty, the care we give our mattress will affect its lifespan and also the comfort when sleeping.
One of the most basic and least effortful cares is the use of protective covers. These covers should be elastic and breathable, avoiding plasticized covers as much as possible since they do not allow proper breathability.

Air out the bed and the room every morning even if only for about 20 or 30 minutes.
Occasionally vacuum the mattress. Many vacuum cleaners have a specific upholstery nozzle.
Rotate the mattress following the brand or manufacturer's instructions. This helps prevent deformities and sagging on the mattress surface. A good mattress rotation interval is every 3 months.
If you need to clean the mattress surface, use neutral soap with lukewarm water to avoid stains, then let it dry in the sun.
Use the appropriate support, depending on the mattress material, is crucial to keep the mattress in good condition. For example, latex mattresses need to breathe much more than other materials like foam, so they require a slatted bed base that allows perfect ventilation.
It is very important to keep the bedroom with a lower humidity level, since many mattresses can develop mold. On the market, we can find many classic or electric dehumidifiers. Both absorb moisture from the environment, extending the life of your mattress.

