Invest in your sleep with the Lucid SureCool™ 14 Inch Medium Firm Gel Memory Foam Mattress. The soft memory foam and responsive foam layers contour and shape to your body so you can sleep better every night. At the same time, the supportive base foam layers provide support to ease the pressure on your joints and keep you sleeping soundly all night long. This cooling mattress is also infused with gel to help regulate body temperature while you sleep. This medium firm memory foam mattress is shipped in a box right to your door; simply place it on your bed, give it 24 to 48 hours to fully expand, and then relax in the luxurious comfort of a convenient bed in a box. The medium firm feel is ideal for all sleepers—including stomach sleepers—or anyone who needs a little extra support. Dimensions: