TOKYO (AP) Tokyo Olympic athletes beware particularly larger ones.

The bed frames in the Athletes Village at this years Olympics will be made of cardboard. Sturdy cardboard.

Those beds can stand up to 200 kilograms, explained Takashi Kitajima, the general manager of the Athletes Village, speaking through an interpreter.

Thats about 440 pounds, and surely no Olympic athlete weighs that much.

They are stronger than wooden beds, Kitajima added.

He also took into account the possibility of a wild room celebration after, say, a gold-medal victory. Of course, wood and cardboard would each break if you jumped on them, he said.