ZINUS 10 Inch True Support Hybrid Mattress [New Version], Full, Fiberglass free, Medium Feel, Motion Isolation, Certified Safe Foams & Fabric, Mattress in A Box TailorView that's why our silk filament B0CJ4SSFTQ that's why our silk filament is smoother Bench dog clamp CUSTOM COMFORT – Individually wrapped coils topped with conforming layers of not too soft comfort foam provide motion isolation and the perfect level of pressure relief for you as you rest Details: This firm hybrid mattress starts with a support layer of wrapped coils that responds independently to your movements for customized spinal alignment and reduced disturbances from restless partners