Enhance your sleep with the comfort you deserve every night with the Flash Furniture Capri Comfortable Sleep 12" Hybrid Pocket Spring Mattress. This hybrid mattress pairs luxurious comfort with optimal support so you can 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 so you can choose the perfect bed for your needs. Offering the best of both worlds, the innovative hybrid design combines conforming high-density foam and pocket spring coils to cradle your body in every position, reducing motion transfer and relieving pressure points for a full, undisturbed sleep. Additionally, 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. Please allow 48 to 72 hours for your mattress to fully expand. Once expanded, this king mattress measures 75.5"W x 81"D x 12"H.