Made from a full 7cm of visco elastic memory foam firstdeveloped by NASA for space missions fused to an 8cm baseof high grade polyurethane foam. This superior mattress isedged with firm foam which offers greater security and makesfor easier nursing.Temperature reactive visco elastic memory foamRecognises shape and pressure and adjusts accordinglySuitable for both standard and profiling bedsSupplied with a zipped, Dartex, multi-stretchwaterproof / VP coverAll mattresses are 15