sleep over

sleep over

1. verb To sleep in another person's home as their guest. My son is sleeping over at his friend's house tonight. It's getting late, so why don't you both sleep over in our spare room?
2. verb By extension, to spend the night in someone's bed, with the implication of having sex with them. Are you sure you're ready for him to sleep over? You've only been going out for a couple weeks. Even when I was in my mid-20s, my parents still didn't allow my girlfriend to sleep over.
3. noun A gathering in which one or multiple people (typically children) sleep in another person's home as guests. As a noun, the phrase is usually spelled as one word. Julie is just nervous because it's her first sleepover, but she brought her special teddy bear to help her feel comfortable.
See also: over, sleep
Farlex Dictionary of Idioms.

sleep over (with someone) (some place)

to spend the night sleeping at someone else's home. (Typically said by teenagers or younger children who spend the night with a friend.) Mom, can I sleep over with Tony? Can I sleep over at Tony's house?
See also: over, sleep
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

sleep over

Spend the night as a guest in another's home, as in Karen's friend Wilma is going to sleep over tonight. [Second half of 1800s]
See also: over, sleep
The American Heritage® Dictionary of Idioms by Christine Ammer.

sleep over

v.
To spend the night as a guest in another's home: A friend from out of town slept over last night. You can sleep over on the couch if you're too tired to drive home.
See also: over, sleep
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • bag it
  • bag someone
  • bagged
  • bagging
  • cross over
  • going to
  • drive home
  • drive something home
  • drive/hammer something home
  • face-off
References in periodicals archive
We have sleep overs, shopping trips, Cinema and Birthday Parties etc..
ON THE GRAPEVINE
"...OH YOUR FRIENDS THOUGHT THAT A FEW PRANKS CALLS WOULD PUT ME OFF SELLING THE GIFT WE BOUGHT FOR THEM for YOUR BIRTHDAY because YOU all LIED to us about sleep overs so you could hang like little trollops at an older guys HOUSE?????
Aussie Mum Punishes 'Lippy' Daughter By Selling Her One Direction Concert Tickets On eBay
The girls themselves have to try and think of ways to raise money, such as sleep overs and other things.
Majorettes march on with ECHO cash; Group praises Wish windfall
Send your tokens to: 2 Kineton Road Boldmere, Sutton Coldfield, Birmingham, B73 5DN 184th 1st Kingshurst Scout Group David Thurgood We are trying to raise money to have a full kitchen fitted, enabling us to cater for sleep overs, run cooking badges, and cater for further activities.
Some of the groups looking for your support
"My kids love the TV room with the plasma screen and built in surround sound - great for all the sleep overs.
Childhood home holds many happy memories for Emma
Great for sleep overs and it beats sleeping on the sofa.
Wales' best kept bedroom secret! HOMESADVERTISING FEATURE
Adi is a veteran of long sleep overs to make sure he gets the best tickets.
Overnight success; Man camps out on venue's doorstep to secure tickets for friend's daughter