Madeleine 1200. The Madeleine 1200, voted a 'Which Best Buy' is a pocket sprung mattress from Sealy. It's a great choice for allergy sufferers as the fillings of Innergetic latex, Purotex and Tencel won't cause irritation, leaving you to have a cool and relaxed sleep. The springs have zoned tensions in order to offer better orthopaedic support and relieve tensions. Surrounding the springs there is Unicase which will stop the mattress sagging and support edge-to-edge. So buy this Madeleine 1200 Now £469.00.