shàng​chuáng

go to bed

上床 shàng​chuáng
go to bed verb
to go to bed; to retire for the night

I usually go to bed at ten-thirty in the evening.

have sex verb
to have sexual intercourse (colloquial)

He doesn't want to sleep with just anyone.

Frequency

Written text
8.82 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)