sleep with

Be sexually intimate with, as in The playwright had made several attempts to sleep with the maid. The related phrase sleep together means "have sexual relations," as in We wondered if they were sleeping together but didn't dare to ask them. The verb sleep has been associated with sex since the 10th century. Sleep with dates from the 1300s sleep together was first recorded a century later.

The verb has one meaning:

Meaning #1: have sexual intercourse with
  Synonyms: love, make out, make love, get laid, have sex, know, do it, be intimate, have intercourse, have it away, have it off, screw, fuck, jazz, eff, hump, lie with, bed, have a go at it, bang, get it on, bonk