[1] : WordNet (r) 2.0

sleep with
     v : have sexual intercourse with; "this student sleeps with
         everyone in her dorm"; "adam knew eve"; "were you ever
         intimate with this man?" syn: roll in the hay, 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
see also:
roll in the hay 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 

[2] : Moby Thesaurus II by Grady Ward, 1.0

23 moby thesaurus words for "sleep with":
   ball, be intimate, cohabit, come together, commit adultery,
   copulate, couple, cover, diddle, fornicate, frig, have sex,
   have sexual relations, lay, lie with, make it with, make love,
   make out, mate, mount, screw, serve, service

Sleep >> S Words
Sleep, definition of term: Sleep
sleep_pag1.html

Sleep Off >> S Words
Sleep Off, definition of term: Sleep Off
sleep+off_pag1.html

Sleep In >> S Words
Sleep In, definition of term: Sleep In
sleep+in_pag1.html

Beauty Sleep >> B Words
Beauty Sleep, definition of term: Beauty Sleep
beauty+sleep_pag1.html

Cat Sleep >> C Words
Cat Sleep, definition of term: Cat Sleep
cat+sleep_pag1.html