I don't think she did much sleeping.
Reminds me of an old mate of mine years ago when we were all about 18, he claimed to have slept with this stunning girl we knew.
He kept saying "I slept with her" until one of my mates just came right out and said "Did you fuck her"?
He said, Look, "I slept with her, alright leave it at that"
Bit later said girl walked in the club, my mate just shouted over to her in front of everyone "Hey, this kunt says hes fucked you"
Turned out he had slept at her house but didnt do anything
He never slept at her house again though.