Athletes at 2020 Tokyo Olympics will be sleeping on cardboard beds

Tokyo 2020 takes 'out-of-the-box' approach with cardboard beds/Getty Images

Athletes competing at the Tokyo 2020 Olympic and Paralympic Games will sleep on bed frames made from recyclable cardboard, with mattresses formed of polyethylene materials that will be reused for plastic products after the Games.

The environmentally conscious sleeping arrangements were put on display for the media for the first time on Thursday at a mock apartment in the Tokyo 2020 headquarters, though construction of residential sections of the Olympic and Paralympic village were completed in December.