Enjoy a better night’s sleep with the comfort and exceptional support of the exclusive 25.4 cm (10 in.) Blackstone gel memory foam mattress. This Blackstone mattress is made with green tea, ActivCharcoal and BioFoam. Comfort and support are provided from the 7.6 cm (3 in.) gel memory foam layer. The second layer of comfort foam conforms to the natural shape of your body, resulting in customized spinal alignment and a more restorative night’s sleep. The airflow high-density base support foam layer provides long lasting durability and stability. Please open your mattress package within 72 hours of receipt and enjoy a better night’s sleep that same night.