Futon, Tatami, Bed - The Elan bed is designed for use with a futon mattress, with or without underlying tatami mats. Choose tatami mats for your Elan bed to achieve a Japanese look in your bedroom with a futon mattress on top, or use an Elan bed with a futon placed directly in the frame for a more grounded look closer to the floor. Design by Steffensen and Würtz for Karup Design.