The Posh+Lavish 3" Natural Rubber Topper enhances any mattress with extra plushness and resilience, crafted from 100% natural rubber for sustainable comfort. Encased in TencelĀ® fabric, it offers breathable softness that helps regulate temperature through the night. This 3-inch thickness is ideal for those desiring a deeper layer of support without sacrificing the feel of their existing mattress. Available in standard and split-head king sizes for flexibility with adjustable bases.