The Feel This mattress has a firm feel. The 4″ high-density foam base makes it a great choice for children or people searching for a firm mattress that will provide correct back support. Benefits of Memory Foam Pair the natural benefits of a firm mattress with Lucid’s unique memory foam, and you’ll be sleeping better in no time. The 2″ comfort layer of premium memory foam quickly conforms to body weight and position to relieve shoulder, neck and back pain by supporting the body’s natural curves. The foam will correctly align the spine, improving posture and preventing lower back pain. Lucid’s open cell technology creates a durable, more resilient foam that will not leave long-lasting body impressions. This 2″ comfort layer is supported by a 4″ high-density foam base for firmness and support. Safe for You and the Environment A good night’s rest is important to your health. Lucid’s memory foam is naturally resistant to allergens and dust mites. The foam is CertiPUR-US certified. That means the foam used in this product has been tested and certified by an independent laboratory saying it meets special criteria for physical performance, indoor emissions and environmental stewardship. It contains no formaldehyde, harmful phthalates, or PBDE flame retardants and is low VOC. This mattress does not contain synthetic or natural latex of any kind.25-Year Warranty We offer a 25-year warranty that protects the mattress and cover against manufacturer’s defects. Includes one Full sized (53″ x 74″) mattress and cover. Mattress cover may vary from picture in pattern and color.