unlock secret to a peaceful night's sleep with by twin extra long mattress. this mattress is a haven of comfort and tranquillity, designed to help you achieve restful sleep you deserve. by collection is a leader in sleep innovation, featuring dual cooling technology that combines cooling gel foam and phase change technology to keep you cool and comfortable. gen ii gel- memory foam provides superior -point relief, ensuring a restful sleep without discomfort. it also improves airflow, creating a fresh and pleasant sleep atmosphere. individually wrapped coil unit with marvellous middle offers enhanced support, reducing motion transfer and providing a stable sleep surface. medium comfort foam adds an extra layer of softness while also assisting with temperature control. gel- memory foam in this mattress contours to your body, delivering a customized and supportive sleep experience. mattress is presented in a stylish navy blue colour and is made from foam. it has a depth of 78.81 inches, a width of 38.13 inches, and a height of 12.76 inches, with a weight of 63.8 pounds. package measures 41 inches in depth, 20 inches in width, and 20 inches in height, weighing 70 pounds. : unlock peaceful sleep, comfort haven mattress, sleep innovation leader, cooling technology excellence, relief assurance, airflow enhancement, supportive coil features, temperature control foam, contoured sleep comfort, navy blue style mattress, quality foam constructionenjoy a restful night's sleep with by twin extra long mattress. this mattress is designed to meet your sleep needs and provide you with a comfortable and relaxing sleep environment. dual cooling technology, featuring cooling gel foam and phase change technology, ensures a cool and comfortable sleep surface. gen ii gel memory foam provides excellent -point relief, allowing your body to unwind and relax. improved airflow within mattress keeps air fresh and circulating, creating a pleasant sleep atmosphere. individually wrapped coil unit with marvellous middle offers superior support and reduces motion transfer, ensuring a peaceful sleep. medium comfort foam helps equalize and regulates your body temperature for a cozy and restful sleep. gel in memory foam effectively dissipates heat, keeping you cool and comfortable. mattress is available in a charming navy blue colour and has dimensions of 78.81 inches in depth, 38.13 inches in width, 12.76 inches in height, and weighs 63.8 pounds. package measures 41 inches in depth, 20 inches in width, and 20 inches in height, with a weight of 70 pounds. : restful night's sleep, cooling technology comfort, gel memory foam relaxation, airflow freshness, support and motion reduction, equalization, temperature regulation, heat dissipation, navy blue mattress charm