To keep the bed clean, you should use a bedspread.

为了保持床的洁净，你应该铺上床罩。

youdao

He added that the campaign to keep the 18-bed hospice open had been "heart-warming".

BBC: Staunton Harold Hall, Leicestershire

With one child awake, it was impossible to keep the other three in bed.

CNN: Excerpt: The calm before Katrina

His little brother, Joshua, tries to keep on sleeping in the bed they share.

BBC: News | NEWSNIGHT | Military academies transcript