Supportive Coil System: Fathom durable coils flex to your body's individual needs and are designed to offer immediate support, then provide stronger deep-down support throughout the night. Enjoy Hybrid Philosophy: With all the benefits of the spring mattress, plus cooling gel memory foam, Fathom hybrid mattress features all the quality and durability to relieve pressure points for enhanced conforming comfort. This queen hybrid mattress is designed for sleepers who want an extra bounce, added edge support, and a firm, classic feel. Mattress in a Box: Our queen hybrid mattress is compressed, rolled, and packed in a compact box for easy delivery and setup. It is compatible with different types of frames, including box springs, slatted platforms, adjustable beds, and even floors. Simply unbox the mattress and allow 24 hours for it to fully expand to its original shape. Safe Sleeping Environment You Can Trust: All components of our mattress, from CertiPUR-US Certified memory foam to Oeko-Tex Standard 100 Certified Fabric, are rigorously tested to provid a Child-Safe & Chemical-Free sleeping environment. Worry-Free 10-Year Limited Warranty: Built with high-quality materials, our mattress is designed for lasting comfort and durability. Please note: This warranty covers product integrity and is separate from a trial. All opened mattresses are non-returnable.