The Horizon Discovery 1500 Pocket Memory Mattress is a wonderfully comfortable mattress made from 1500 responsive pocket springs to support your body throughout the night. It features a deep and cosy layer of memory foam for total comfort and soothing pressure relief. The super-deep memory foam layer is 7.5cm - a rare find in the mattress world! The cover features an attractive swirled pattern which looks truly futuristic. With a 5 Year Warranty and Free Next Day Delivery, you can experience a better night's sleep as soon as tomorrow.