Supportive springs and breathable foams combine for the best of both worlds in The Casper Dream Hybrid Mattress, designed with a medium feel that's perfect for any sleep style. With cooling comfort and ergonomic support, the airy soft knit cover creates a cozy surface alongside responsive, open-cell Breathe Flex Foam and pressure-relieving Align Memory Foam. Incorporating three points of targeted relief to minimize tossing and turning, Zoned Support™ is engineered to keep your spine in alignment