A traditional open coil spring system & pressure relieving memory foam make up the Sareer 4ft Orthopaedic Memory mattress, resulting in a firm, yet comfortable night's sleep. Memory foam is temperature sensitive, designed to soften with body heat & mould itself to your contours. This reduces body pressure points & results in better blood 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 & connected into one single unit by spiral helical wires. For long-lasting support & comfort, we recommend that you rotate the mattress on a regular basis. As it's designed to be one-sided, there's no need for it to be flipped over. Mattresses are not the easiest thing to manoeuvre to your bedroom, that's what makes a vacuum packed one a wise purchase. A couple of hours after unpacking, it looks no different to any other mattress. Technical Specifications FEATURES BENEFITS Micro quilted Ensures a comfortable & flat sleeping surface. Damask cover Traditional hard wearing & durable cover in a timeless woven design. 12mm top layer of memory foam Body moulding & pressure relieving materialthat reduces tossing & turning & promotes good blood circulation. Hypo-allergenic fillings Its fillings are anti-microbial & inhibit bacteria, fungi & house dust mites. Particularly beneficial for people who suffer from respitatory problems. Open coil A robust spring system that is supportive & extremely durable. Especially ideal for beds that are likely to take a lot of wear & tear. Firm support The most popular level of support that suits all but the heaviest or lightest of people. The majority of our customers choose this support level. Vacuum packed This allows for easy transportation & when fully unpacked it fills out to its full & permanent size within a couple of hours.