Pocket spring: Get a 3000 cashmere mattress. Six sizes: Choose from small single, single, small double, double, king or super king. Thickness: 11-inches thick with a 4cm memory foam mattress option. Luxury finish: Featuring a hand stitched border and turning handles. Medium firmness: Perfect for those who sleep on their side. Anti-allergy: Dust mite resistant and hypo-allergenic.