About this item Uses 100% rush grass. Non slip! Our rush grass mattresses are unique decor for traditional tatami rooms which you often see in traditional Japanese inns and temples. Conventional tatami mattresses are thick and heavy. But our rush grass mattresses are light and thin—only 0.4 inches thick. As such, you can easily carry one with you, and it doesn't take up a lot of storage space. You can even bring it to a picnic or a yoga class. With our traditional Japanese rush grass mattresses produced by MIINA JAPAN, you can sleep comfortably on the floor. Tatami mattresses smell good like freshly cut grass, which is actually the smell of cultivated soft rushes. They smell very refreshing and exotic at the same time, taking you back to the good old days. But it can be a bit too much for people with an acute sense of smell. If you want to remove the smell from your mattress, place it in the shade in a well-ventilated area for at least one day. Please check the product before purchasing! Because igusa is a natural material, it may have some irregularities such as uneven color, varying thickness, splits, and effects from the sun. Simply snip away split pieces of igusa. Products with these irregularities are not defective, so please enjoy their natural beauty. Flip-flap!! Put six tatami mattresses together and you can create a cozy space for your family to kick back and relax in the blink of an eye! Soft rushes absorb moisture, thereby controlling humidity. They get rid of sticky skin after sweating and improve your sleep quality. Feel the sweet rush of pleasure with MIINA JAPAN's rush grass mattresses!