16yo dd arrived home at around 8am after camping out in her friend's garden last night. Unsurprisingly, they didn't get a lot of sleep, but I was glad that they had the chance to have some fun after a difficult year!
I asked her if she was going to sleep a bit this morning to catch up, and she said that she'd rather not because she might end up sleeping all day and would prefer to sleep early tonight instead so that she stays in a normal sleep pattern. She then promptly fell asleep. 
She has been asleep for nearly a couple of hours (in my bed of all places!). I don't know whether to leave her or wake her. WWYD?
She has finished GCSEs so no school on Monday if it makes any difference.