Or do they do that textbook thing where they all look cute and have pillowfights?
We may never know, but Selena Gomez has just given us an inside glimpse, and we're jealous.
She and her besties, Rebecca Walters, Theresa Mingus and Paige Reed dressed up in matching, pink $20 pyjamas and posed for Instagram.
If you want that adorable PJ set, then look no further than Target.
Now we can all be as cute as Selena and her inner circle!
