Usage of the character 寢

(bound form) to lie down to sleep or rest
(bound form) bedroom
(bound form) imperial tomb
(literary) to stop; to cease

jiùqǐn

就寝

[就寢]

to go to sleep
to go to bed (literary)

língqǐn

陵寝

[陵寢]

tomb (of king or emperor)

qǐnshì

寝室

[寢室]

bedroom
dormitory
CL:間／间 (jiān)

qǐnjù

寝具

[寢具]

bedding

ānqǐn

安寝

[安寢]

to sleep peacefully

fèiqǐnshí

废寝食

[廢寢食]

to neglect sleep and food

wàngcānfèiqǐn

忘餐废寝

[忘餐廢寢]

see 廢寢忘食／废寝忘食 (fèiqǐnwàngshí)

fèiqǐnwàngcān

废寝忘餐

[廢寢忘餐]

see 廢寢忘食／废寝忘食 (fèiqǐnwàngshí)

shíròuqǐnpí

食肉寝皮

[食肉寢皮]

to eat sb's flesh and sleep on their hide (idiom); to swear revenge on sb
implacable hatred
to have sb's guts for garters

Zǎi Yǔzhòuqǐn

宰予昼寝

[宰予晝寢]

Zai Yu sleeps by day (idiom); refers to story in Analects of Confucius remonstrating bitterly with his student for sleeping during lectures

qǐnshínán'ān

寝食难安

[寢食難安]

lit. cannot rest or eat in peace (idiom)
fig. extremely worried and troubled

shòuzhōngzhèngqǐn

寿终正寝

[壽終正寢]

to die of old age
to die in one's bed at a ripe old age
(fig.) (of a structure or machine etc) to come to the end of its life

jiùqǐnshíjiān

就寝时间

[就寢時間]

bedtime

fèiqǐn-wàngshí

废寝忘食

[廢寢忘食]

(idiom) to skip one's sleep and meals; to be completely wrapped up in one's work

qǐnshānzhěnkuài

寝苫枕块

[寢苫枕塊]

bed of straw and pillow of clay (idiom)
the correct etiquette for a filial son during the mourning period

zhěngēqǐnjiǎ

枕戈寝甲

[枕戈寢甲]

lit. to sleep on one's armor with a spear as a pillow (idiom)
fig. to keep ready for battle at all times