The LUCID Comfort Collection 10-Inch Gel Memory Foam Mattress offers a medium-firm-feel thanks to the pressure-relieving top layer of gel memory foam combined with a layer of supportive high-density base foam. Gel memory foam helps regulate body temperature and deliver a comfortable and consistent sleep experience. The ventilated design helps to increase airflow through the memory foam layer. A soft TENCEL blend cover improves the breathability and natural moisture control of your sleep environment. All LUCID mattresses are compressed, rolled, and shipped in an easy-to-manage box for convenient shipping and simple set up.