Upholstered in a soft to touch stretch fabric cover, the Ailsa mattress features Silentnight's unique Miracoil zoned spring system & will suit those who prefer an extra firm support. Hypo-allergenic fillings create a healthy sleeping surface, whilst its patented spring system is designed to provide extra support for your neck, shoulders & lower back. It distributes your body weight up & down the mattress instead of across it, with extra springs concentrated in the central third to provide a supportive posture zone. Edge to edge support offers you a wider sleeping surface, allowing you to sleep comfortably right up to the border of the mattress without the sensation of rolling off. Silentnight are renowned for their attention to detail & the Ailsa mattress is no exception, so if you want a quality orthopaedic that's designed to last, this is the one for you. Technical Specifications FEATURES BENEFITS Micro quilted finish Secures the surface layers of fillings to the outer cover & ensures a flat & comfortable sleeping surface. Knitted stretch fabric cover Soft to touch & gives the mattress a luxurious feel. Hypo-allergenic & designed to create a cooler sleeping surface. Miracoil 3 zone system Unique 3 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 to create individual sleeping zones & minimising partner disturbance across its width. Extra firm support For people who like to sleep on a very firm surface. Supportive but still comfortable. 5 year warranty Gives you peace of mind that you have purchased from a supplier who has complete confidence in their products.