With a Good Housekeeping Institute\'s Getting Greener award, the Silentnight Sofia is a truly award-winning mattress! Featuring 1200 individual Mirapocket springs, you\'ll get medium-firm support exactly where you need it most. Enjoy heavenly comfort that doesn\'t cost the earth: Eco Comfort Fibres™ are 100% sustainable so your mattress cares for you - and the planet. Clean and fresh, the Sofia is also hypoallergenic for your total peace of mind. It comes complete with a 5 Year Guarantee and Free Next Day Delivery. The Sofia simply has everything you need for the perfect night\'s sleep - every night!