Cardboard beds have returned to the Olympics. What do they do?
![Cardboard beds at the 2024 Paris Olympic Games have made headlines.](https://npr.brightspotcdn.com/dims3/default/strip/false/crop/6000x4000+0+0/resize/6000x4000!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F18%2Fb5%2Fc21af55c4632b47bb31b689cf505%2Fgettyimages-2163429811.jpg)
Cardboard beds are one of the Olympics' latest green innovations. But not all the athletes are fans.
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Cardboard beds are one of the Olympics' latest green innovations. But not all the athletes are fans.
(Image credit: )