Twin size 10-inch Thick Memory Foam Mattress - 25-year WarrantyThis Twin size 10 inch Thick Memory Foam Mattress 25 year Warranty has a medium firm feel because the thicker comfort layer makes this mattress feel softer than our 6" or 8" mattresses. The 2. 5" memory foam comfort layer will cradle your body and relieve pressure points so you wake up well rested. It works throughout the night to correctly align your spine, improving your posture and preventing lower back pain. Designed in the U. S., imported