JERFIT 12 Inch King Size Hybrid Mattress, Medium Firm Support with Isotonic Memory Foam & 5-Zone Coil System for Pressure Relief, Edge Support, Cooling Sleep

JERFIT 5-Zone Support System: Strategically designed foam layers provide targeted lumbar support and optimal spinal alignment, reducing back pain. Isotonic Memory Foam Comfort Layer: Responsive foam conforms to your body's contours to effectively relieve pressure points at the shoulders, hips, and back. Individually Pocketed Innerspring Coils: Enhance motion isolation and provide durable, responsive edge-to-edge support without the bounce of traditional springs. Cooling & Breathable Cover: The soft, white knit fabric promotes superior air circulation throughout the night for a consistently cool sleep surface. Adjustable Base Friendly: Easily compatible with adjustable bed frames, allowing you to customize your sleeping or lounging position with ease. Enhanced Edge Support: A reinforced perimeter prevents sagging and provides a larger, more stable sleeping surface, making getting in and out of bed easier. Medium-Firm Feel: Offers an ideal balance of plush comfort and firm support, suitable for all sleeping positions (back, side, and stomach sleepers). Hypoallergenic Properties: The foam layers resist common allergens like dust mites, promoting a cleaner and healthier sleep environment. Certified Safe Materials: Crafted with high-quality, CertiPUR-US certified foams that are free from harmful chemicals and ozone depleters.