FULI Japanese Traditional Igusa Tatami Mattress, Twin XL, Green. Made in Japan Uses 100% Rush Grass.(Grown in Japan) Use as a Oriental Rug on the floor, Use as a Underlay Mattress for the Japanese Traditional Futons too. 0.47 x 39 x 83 inches. Folded in three. Made by Japanese Craftsmen. Provides Maximum Comfort.