Offering the best of both worlds, this hybrid mattress combines conforming high-density foam and pocket spring core to cradle your body in every position, reducing motion transfer and relieving pressure points for a full, undisturbed sleep. You'll wake up each morning feeling refreshed and ready to take on the day. It's compatible with trundle beds, platform beds, and adjustable bed frames. The CertiPUR-US Certified foam is free from harmful substances to ensure a safe sleep environment, allowing you to rest peacefully and relaxed knowing the quality of your indoor air won't be compromised. Your mattress in a box ships compressed, rolled, and boxed, making it easy to transport and fit neatly into most bedframes.