The Sealy Posturepedic Elevate Ultra Arden Medium Mattress combines advanced technology and expert craftsmanship for a supportive and comfortable sleep experience. Patented AlignSupport® coil system with unique geometry for initial body response Deep-down support with twice-tempered coils for even weight distribution and durability SmarTex® fabric technology woven into surface layer to disperse heat for a cooler, cleaner sleep ProShield® fabric treatment endorsed by Allergy UK to protect against allergens and maintain freshness MemorySense® ComfortCore™ targeting hips and lower back for pressure relief Medium softness foam layer for a sumptuous feel InfiniLux™ layer providing resilience and long-lasting comfort Patented UniCased® XT edge reinforcement locking into AlignSupport® system for stability and edge-to-edge sleep surface Coil-inspired air channels enhancing breathability BasePlank foundation supporting the spring system for true support Handmade in Britain 7 year guarantee Medium firmness level