The Silentnight Seoul mattress contains body-moulding memory foam, a Miracoil spring system & hypoallergenic fillings that incorporate ‘ Eco Comfort Fibre’ ‘ Eco Comfort Fibre’ is a scientifically proven fibre that dramatically reduces heat build up whilst you sleep & also provides pressure relieving comfort. The memory foam layer is 25cm deep & temperature sensitive, designed to soften when it comes into contact with warm surfaces & moulds itself to your body shape. This helps to reduce the pressure points on your body, creating better blood circulation & resulting in less tossing & turning by evenly distributing your body weight. Silentnight’s Miracoil spring system has 3 firmness zones that provide extra support for your hips & softness for your shoulders. The design features springs that are connected from head to toe distributing weight up & down the mattress instead of across it. This creates individual sleep zones giving each person an undisturbed sleep. Also extra springs are concentrated in the centre third of the mattress to create a supportive Posture Zone just where the body needs it most. Edge to edge support gives you a wider sleeping surface – you can sleep comfortably right up to the very edge of the mattress without the sensation of rolling off. The mattress does not require to be flipped over as it’s designed to be one-sided, but it need to be rotated from head to toe regularly. The Seoul is a supportive & comfortable mattress that represents the quality you would expect from the UK’s leading bed & mattress manufacturer. Technical Specification FEATURES BENEFITS Micro quilted finish Ensures a comfortable & flat sleeping surface High density stretch fabric cover Soft to touch & gives the mattress a luxurious feel 25mm memory foam top layer Body moulding & pressure relieving material that reduces tossing & turning & promotes good blood circulation Miracoil 3 zone system Three zone spring system offers extra support to the lumbar region, keeping the spine straight & optimising sleep posture Miracoil no roll together Continuous springs run from head to toe creating individual sleeping zones & minimising partner disturbance across the width of the bed Easy care no turn mattress No flipping of the mattress is required (though we still recommend the occasional rotation from head to toe) 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 5 year warranty against manufacturing defects Great peace of mind backed by the UKs biggest bed manufacturer