Amsterdam Silentnight. The Amsterdam is a firm tension mattress that contains Miracoil®, a continuous spring system specifically designed to offer independent support. So much so, even Silentnight’s Duck and Hippo can enjoy a peaceful night’s sleep together! The mattress has been divided into three zones tailored to relieve pressure on vulnerable joints like your shoulders, hips and knees. The Amsterdam is also hand tufted and contains inherently cooling EcoComfort® fibres, which maintain the optimal temperature for a comfortable night’s sleep. Furthermore, the Amsterdam has been coated in a hypoallergenic treatment that deters mould and eliminates household dust mites, perfect for those who suffer from allergies or asthma. So buy this Amsterdam Silentnight Now £194.00.