The SleepMor 10” Firm Hybrid Cool Mattress, Twin XL supports the ideal body temperature for an uninterrupted sleep. It’s firm base ensures that the body maintains a healthy position throughout the night. Enjoy a good night’s sleep on this supportive hybrid mattress. Product Details: • Cooling features • Firm support • Works with an adjustable foundation Dimensions • 38”W x 75”D x 10”H