An elderly person may nap during the day and then sleep only five hours a night.

上了年纪的人白天会小睡一会儿，然后晚上只睡5个小时。

《柯林斯英汉双解大词典》

Is this an elderly person?

证人是一位老人吗？

youdao

A young baby or an elderly person?

有孩子或者老人吗？

youdao

"I was very disgusted that somebody would handle an elderly person like that, " he said.

BBC: US mayor 'sorry' elderly woman removed from train

"If an elderly person took that they might not ever wake up again!"

FORBES: Bad Medicine

There are no rent arrears for the Castletown and Malew Elderly Person Housing Committee or the Cooil Roi Housing Committee.

BBC: Isle of Man housing owed ?250K in rent