A modular pod mattress with an integral mattress subsurface platform rail system, a plurality of modular pods to be securely fitted into the mattress subsurface platform rail system, a first compartment to house a mattress lining, and a second compartment to house a mattress topper. The mattress subsurface platform rail system comprises a plurality of rails for forming a series of track mounting spaces for receiving and securing the plurality of modular pods. Each modular pod consists of a plurality of coils springs with varying elasticity that is dependent on the user's height and weight distribution. The modular pods may be removed and replaced pod by pod once worn as opposed to replacing the entire mattress.