* Dual spring system with 5000 responsive springs* Reinforced border increases usable sleep space* Seven zone support helps align your body and ease pressure* Available in Medium or Firm comfort levels This mattress is designed to respond to your body with precision, featuring a dual spring system made up of 1000 Ergo Zone7 pocket springs and 4000 Comfonomic micro springs. Together, they offer seven zones of support to ease pressure and adapt to your movements throughout the night. A generously filled pillow top adds an extra layer of softness for a more cushioned, cocoon-like sleep. The reinforced Ultra Edge Border gives you more space to stretch out while keeping you supported across the entire surface. Smooth Tech tuft free technology creates a soft, lump free surface for uninterrupted rest.