SLEEP YOUR WAY. SIDE, BACK, OR STOMACH：KOULABRZ 14 inch King Size Hybrid Mattress adjusts to you. The soft, pressure-relief plush top(low-resistance foam and gel memory foam) layer cradles every contour. The dynamic wrapped pocket coils improve spinal alignment TARGETED SUPPORT WHERE IT MATTERS (ZONE SUPPORT) The Superior Zoned Support System, featuring 8.5” high-compression pocketed coils and reinforced lumbar foam ensure extra support for your lower back and hips. This reduces sinkage, promotes healthy spinal alignment, and helps alleviate back pain — so you wake up refreshed and ready to take on the day SOFT YET SUPPORTIVE—THE PERFECT FEEL SLEEPERS LOVE：It all starts with the KOULABR Z High-Compression Spring System—shorter coils for stronger support and a thicker, more contouring comfort layer. The 8.5” high-compression pocketed coils reinforce the edges and isolate movement, ensuring balanced comfort in this hybrid mattress. MOTION ISOLATION, SLEEP UNDISTURBED：Responsive coils enhance support and isolate movement—perfect for couples and pet lovers. With reinforced edges, you can enjoy every inch of your mattress without the fear of rolling off. CertiPUR-US WORRY-FREE WARRANTY：All memory foam is CertiPUR-US certified and tested, and we offer a 10-year warranty. We recommend allowing your new mattress to fully expand within 72 hours. Keep a safe distance when unboxing, as the queen mattress may expand rapidly and pose a risk. For any assistance or issues, please contact our customer support team. THE PERFECT HYBRID SUPPORT FOR ALL SLEEPERS Whether you sleep on your side, back, stomach, or change positions throughout the night, the KOULBR Z Mattress delivers the perfect blend of plush comfort and robust support. Its advanced hybrid construction combines adaptive memory foam with individually wrapped responsive coils to cradle your body and relieve pressure points, while providing superior support to keep your spine aligned. The breathable, multi-layer design ensures optimal airflow for a cool, restful sleep, and the dynamic coil system adapts to your movements for personalized comfort and reduced partner disturbance. Experience the balanced feel sleepers love—soft where you want it, firm where you need it.