Queen Mattress, 12″ Memory Foam and Hybrid Innerspring Soft Mattress in a Box, Supportive for Adult. JIAVA queen memory foam mattress helps to alleviate pressure points while a high-density foam base layer provides lasting support throughout the night. The foam quickly conforms to weight and pressure and isolates motion transfer between sleeping partners for a peaceful, undisturbed night of rest. Contouring the curves of your body to relieve pressure points along your neck, shoulders, back, and hips. HUMANIZED DESIGN��Skin-friendly washable cover keeps the mattress surface at the ideal sleeping temperature; No-sink support foams conform to your body for optimal pressure relief. Easy Setup: Professionally machine-compressed and boxed, our hybrid mattress is easy to handle and ship directly to your bedroom. Open the vacuum-sealed bag and allow 48-72 hours for the mattress to fully expand (initial expansion may happen quickly; please keep a safe distance). COMFORTABLE BREATHABLE: All-foam bed design combined expertise and the best materials with advanced sleep technology. Motion Isolation: Individually wrapped coils absorb movement and reduce motion transfer, so you sleep peacefully even if your partner tosses and turns.