The Zinus Nuit 8 inch Cooling Memory Foam Mattress, Twin is designed to keep hot sleepers cool and comfortable. A top layer of gel-infused memory foam helps reduce heat and gently contours to your body for pressure relief in any sleep position. Supportive Zinus Base Foam™ adds stability and the right balance of firmness. A breathable knit cover improves airflow for a cooler sleep. The mattress comes rolled in a box for easy setup and includes a 10-year warranty. Age group: Adult, Universal