MODERN LIVING MADE EASY >>> Sleep comfortably atop this king size 10 inch CertiPUR-US Certified Hybrid Pocket Spring Mattress for peaceful sleeping, night after night. Medium firm mattress to reduce tossing and turning for stomach, side and back sleepers. Pressure Relief Mattress: individually wrapped pocket spring coils minimizes pressure points, reduced motion transfer, high-density foam padding, tight top covering Efficient Packaging: compressed and rolled boxed mattress, please allow 48-72 hours for full expansion, designed for platform beds and trundles