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 for 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 + Würtz for Karup Design.