MustMat Warm Kotatsu Table Wood Japanese Heated Table can be enjoyed with plenty of space beneath for leg room. The heater is already installed under the table frame. You don't need any tools to get it working. It is made of a Natural Solid Rubber Wood. It is perfect for napping, doing homework, watching TV, playing games on or just wanting to stay warm. You can just throw a normal blanket on it, you don't need a special futon. Put a rug or blanket under the table as it will hold the heat in better and just be overall more comfortable for your feet under there.