The noun 床 (chuáng) means "bed." It is one of the most basic and frequently used nouns in Chinese, referring to the piece of furniture for sleeping. For example, 床很暖和 means "the bed is warm."
他一回家就躺在床上不想动了。
Tā yī huí jiā jiù tǎng zài chuáng shàng bù xiǎng dòng le.
As soon as he got home, he lay down on the bed and didn't want to move.
床上放着一本翻开的书,她刚才在看。
Chuáng shàng fàngzhe yī běn fānkāi de shū, tā gāngcái zài kàn.
There was an open book on the bed — she had just been reading it.
这张床太硬了,我昨晚没睡好。
Zhè zhāng chuáng tài yìng le, wǒ zuówǎn méi shuì hǎo.
This bed is too hard; I didn't sleep well last night.