Sareer Matrah Orthopaedic Memory Mattress in a Box - 2ft6 Small Single; Presenting a firm, yet comfortable support, the Sareer Orthopaedic Memory is made up of traditional open coil springs and benefits from pressure relieving memory foam. Memory foam is temperature sensitive, designed to soften with body heat and mould itself to your contours.This reduces body pressure points and results in better circulation. At its core is a robust interior, made up of hour-glass shaped open coil springs, laid out in a series of rows that run from head to toe and connected into one single unit by spiral helical wires. For long-lasting support and comfort, we recommend that you rotate the mattress on a regular basis.As it39;s designed to be one-sided, there39;s no need for it to be flipped over. Manoeuvring a mattress to your bedroom can be hard work, that39;s why a vacuum packed mattress is ideal.Once opened, the Orthopaedic Memory will look like any other mattress within a couple of hours.