Can the use of a waterproof mattress protector reduce the collapse rate of a mattress?

May 13, 2025

Waterproof mattress protectors indirectly affect the collapse rate of mattresses through a multi-dimensional mechanism. Its core value lies in isolating the internal structure of the mattress from external liquids and moisture. For example, filling materials such as latex and sponge are prone to hydrolysis in a long-term humid environment, resulting in fiber breakage and support attenuation. Experimental data show that when the humidity inside the mattress continues to exceed 65%, the rebound performance of high-density foam decreases by about 12% each year, while the waterproof protective cover can control the humidity fluctuation range within the ideal range of 45%-55%. In terms of physical protection, the high-toughness fabric on the surface of the protective cover can disperse the peak pressure of the human body and avoid the accumulation of spring deformation caused by long-term pressure in local areas. Especially for users weighing more than 90kg, it can reduce the stress concentration of the spring system by 15%-20%. The built-in 3D support mesh layer of some high-end products can also buffer the impact energy through the microscopic air column structure, make the pressure distribution uniform, and delay the collapse process of memory foam. However, it should be noted that if the air permeability of inferior protective covers is insufficient, condensed water vapor will form instead, aggravating the oxidation of internal materials. Reasonable use of breathable waterproof protective covers (moisture permeability > 500g/㎡/24h) can extend the average service life of the mattress by 3-5 years and reduce the corresponding collapse risk by about 40%-60%.

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