CICIMLU 12 inch King Hybrid Mattress in a Box Spring Mattress with Silent Coils, Medium Firm

Advanced edge support – Reinforced perimeter springs prevent sagging, offering full-surface stability and long-lasting durability. Cool & breathable comfort – A 3D-knit cover and airflow-optimized coils keep the mattress temperature-regulated all night. CertiPUR-US® certified – The CICIMLU spring mattress is toxin-free and odorless, ensuring safe, healthy sleep for all ages. Zero motion transfer – Hundreds of individually wrapped coils absorb movement, ensuring undisturbed sleep for couples. Easy setup & fiberglass-free: Ships in a box, expands quickly, and is ready to use in 48–72 hours with no harmful materials.