The SwissLux Memory Foam with Fiber Topper is ideal for a better night's sleep in any season. Crafted of quality materials, this mattress topper is designed to last for years to come. MemoryLOFT is a combination of memory foam clusters or gel-infused memory foam clusters and a SofLOFT hypoallergenic fiber fill.Type: Fiber BedFill Type: Down Alternative, Foam, PolyesterMaterial: PolyesterMemory Foam Type: Gel Memory FoamThickness: 3 inchesCare Instruction: Spot CleanDimensions:Twin: 39 inches wide x 75 inches long x 3 inches thickTwin XL: 39 inches wide x 80 inches long x 3 inches thickFull: 54 inches wide x 75 inches long x 3 inches thickQueen: 60 inches wide x 80 inches long x 3 inches thickKing: 78 inches wide x 80 inches long x 3 inches thickMemory Foam Tips:Remove from packaging within 72 hours of receipt to maximize memory foam expansion.This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.