Features King Size Mattress 5ft x 6ft6 / 150cm x 200cm. Total Depth 20cm (8 inches thick). Features premium 50KG/m³ zoned memory foam and 1000 individual pocket springs. Rated as 'medium-firm'. Extensively tested to ensure the right balance of comfort and support. Reactive Fresh cover works to regulate body temperature by wicking away moisture. Features a breathable mesh border.