The Purple Restore Plus 13" Firm King Mattress is a hybrid type, offering a firm comfort level. Its grey and purple color scheme is complemented by a multi-media material construction, including a SoftFlex Stretch Cover with Anti-microbial Fabric Treatment, a 2" Purple GelFlex Grid, 1.5" Soft Comfort Foam, and 8" edge-to-edge Individually Encased coils.