The Waltham PostureTech mattress by Sealy provides bounce-back comfort thanks to a super flexible Latex comfort layer. Latex comfort provides a bounce-back feeling for the perfect pressure relief. Latex is resilient, recovering its shape after each night's sleep, ready for the next time you take a snooze. Latex is also anti-bacterial, creating a cool and fresh sleeping environment. Paired with Sealys bespoke PostureTech spring system at the heart of the mattress, designed to provide long-lasting and deep-down support. The springs react to the weight and movement, applying support where your body needs it the most. Tucked inside the spring unit, Edge Guard works in unison to extend the sleeping area and provide added durability. The Waltham mattress is single-sided and finished with a quilted surface for an added touch of luxury. All Sealy mattresses are hand-crafted in Britain and come with a 5-year guarantee for extra peace of mind. Medium, single mattresses 29 cm depth are available in Single, Small Double, Double, King, and Super king sizes. 5-year guarantee handmade in the UK.