Keep your nights peaceful when you fall asleep on this versatile mattress. The Sealy Spring Bloom 12” Medium Mattress, Twin XL offers medium firm support, a soft cover, and layers of gel foam cushions designed to cushion cool and enhance air circulation. It is the perfect mix of support and comfort. Product Details: • Mattress is not compatible with an adjustable foundation • Closely positioned, motion reducing coils are surrounded by cushioning material • Soft knit cover features antibacterial properties