The Youth Essentials firm is designed to feel like you're lying on top of the mattress rather than sinking in, with firmer foams for balanced resistance. A perfect balance of comfort and uplifting support. Multiple layers of certified CertiPUR-US foam to provide the perfect balance of support and pressure-relieving comfort. You can depend on the Youth Essentials Firm to deliver consistent and stable sleep for the life of the mattress. The height of this mattress is 8". The Youth Essentials Firm mattress is backed by a 5 Year Non-Prorated Warranty.