King Size Mattress in a Box, 14 Inch Memory Foam Hybrid Mattress

【Hybrid Support System】: Combines responsive pocketed coils with multiple layers of memory foam and convoluted foam; provides both contouring comfort and stable support for all sleep positions; minimizes motion transfer for undisturbed sleep. 【Medium-Firm Comfort】: Features a medium-firm feel ideal for back, side, and stomach sleepers; contours to your body to relieve pressure points and promote proper spinal alignment; enhances overall sleep quality. 【Reinforced Edge Support】: Engineered with reinforced edges to maximize the usable sleep surface; prevents sagging and provides a stable perimeter; enhances durability and offers a more secure sleep experience. 【Breathable & Cooling Design】: Incorporates breathable convoluted foam layers to promote airflow and dissipate heat; helps regulate body temperature for a cooler, more comfortable sleep environment; knitted cover enhances breathability. 【Convenient & Worry-Free】: Ships compressed in a box for easy delivery and setup; compatible with platform beds, slatted bases (≤5 inches), and box springs; includes a 180-night trial and a long-term warranty for customer satisfaction.